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In its simplest form, the more the user scrolls down, the more rows get loaded."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The grid will have an 'auto extending' vertical scroll. That means as the scroll reaches\nthe bottom position, the grid will extend the height to allow scrolling even further down,\nalmost making it impossible for the user to reach the bottom. This will stop happening\nonce the grid has extended the scroll to reach the last record in the table."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h2","properties":{"id":"how-it-works","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#how-it-works","ariaLabel":"how it works permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"How it Works"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The grid will ask your application, via a datasource, for the rows in blocks. Each block\ncontains a subset of rows of the entire dataset. The following diagram is a high-level overview."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"span","properties":{"className":["gatsby-resp-image-wrapper"],"style":"position: relative; display: block; margin-left: auto; margin-right: auto; max-width: 800px; "},"children":[{"type":"text","value":"\n      "},{"type":"element","tagName":"a","properties":{"className":["gatsby-resp-image-link"],"href":"/archive/28.0.0/static/3be4effef5c4fd9ede018e453855477a/665fb/high-level.png","style":"display: block","target":"_blank","rel":["noopener"]},"children":[{"type":"text","value":"\n    "},{"type":"element","tagName":"span","properties":{"className":["gatsby-resp-image-background-image"],"style":"padding-bottom: 44.99999999999999%; position: relative; bottom: 0; left: 0; background-image: url('data:image/png;base64,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'); background-size: cover; display: block;"},"children":[]},{"type":"text","value":"\n  "},{"type":"element","tagName":"img","properties":{"className":["gatsby-resp-image-image"],"alt":"high-level","title":"high-level","src":"/archive/28.0.0/static/3be4effef5c4fd9ede018e453855477a/78d47/high-level.png","srcSet":["/archive/28.0.0/static/3be4effef5c4fd9ede018e453855477a/56d15/high-level.png 200w","/archive/28.0.0/static/3be4effef5c4fd9ede018e453855477a/d9f49/high-level.png 400w","/archive/28.0.0/static/3be4effef5c4fd9ede018e453855477a/78d47/high-level.png 800w","/archive/28.0.0/static/3be4effef5c4fd9ede018e453855477a/665fb/high-level.png 880w"],"sizes":["(max-width:","800px)","100vw,","800px"],"style":"width:100%;height:100%;margin:0;vertical-align:middle;position:absolute;top:0;left:0;","loading":"lazy","decoding":"async"},"children":[]},{"type":"text","value":"\n  "}]},{"type":"text","value":"\n    "}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"When the grid scrolls to a position where there is no corresponding block of rows loaded, the model\nuses the provided datasource to get the rows for the requested block. In the diagram, the datasource\nis getting the rows from a database in a remote server."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h2","properties":{"id":"turning-on-infinite-scrolling","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#turning-on-infinite-scrolling","ariaLabel":"turning on infinite scrolling permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 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59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Turning On Infinite Scrolling"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"To turn on infinite scrolling, you must a) set the grid property "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"rowModelType"}]},{"type":"text","value":" to "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"'infinite'"}]},{"type":"text","value":" and b) provide a datasource."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{"className":["gatsby-highlight"],"dataLanguage":"js"},"children":[{"type":"element","tagName":"pre","properties":{"className":["language-js"]},"children":[{"type":"element","tagName":"code","properties":{"className":["language-js"]},"children":[{"type":"element","tagName":"span","properties":{"className":["token","comment"]},"children":[{"type":"text","value":"// before grid initialised"}]},{"type":"text","value":"\ngridOptions"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":"."}]},{"type":"text","value":"rowModelType "},{"type":"element","tagName":"span","properties":{"className":["token","operator"]},"children":[{"type":"text","value":"="}]},{"type":"text","value":" 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datasource"}]},{"type":"text","value":"\ngridOptions"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":"."}]},{"type":"text","value":"api"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":"."}]},{"type":"element","tagName":"span","properties":{"className":["token","function"]},"children":[{"type":"text","value":"setDatasource"}]},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":"("}]},{"type":"text","value":"myDataSource"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":")"}]},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":";"}]}]}]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h2","properties":{"id":"datasource","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#datasource","ariaLabel":"datasource permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Datasource"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"A datasource must be provided to do infinite scrolling. You specify the datasource as a grid\nproperty or using the grid API."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{"className":["gatsby-highlight"],"dataLanguage":"js"},"children":[{"type":"element","tagName":"pre","properties":{"className":["language-js"]},"children":[{"type":"element","tagName":"code","properties":{"className":["language-js"]},"children":[{"type":"element","tagName":"span","properties":{"className":["token","comment"]},"children":[{"type":"text","value":"// set as a property"}]},{"type":"text","value":"\ngridOptions"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":"."}]},{"type":"text","value":"datasource "},{"type":"element","tagName":"span","properties":{"className":["token","operator"]},"children":[{"type":"text","value":"="}]},{"type":"text","value":" myDatasource"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":";"}]},{"type":"text","value":"\n\n"},{"type":"element","tagName":"span","properties":{"className":["token","comment"]},"children":[{"type":"text","value":"// or use the api after the grid is initialised"}]},{"type":"text","value":"\ngridOptions"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":"."}]},{"type":"text","value":"api"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":"."}]},{"type":"element","tagName":"span","properties":{"className":["token","function"]},"children":[{"type":"text","value":"setDatasource"}]},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":"("}]},{"type":"text","value":"myDatasource"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":")"}]},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":";"}]}]}]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"changing-the-datasource","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#changing-the-datasource","ariaLabel":"changing the datasource permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Changing the Datasource"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Changing the datasource after the grid is initialised will reset the infinite scrolling in the grid.\nThis is useful if the context of your data changes, i.e. if you want to look at a different set of data."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{"className":["custom-block","note"]},"children":[{"type":"element","tagName":"div","properties":{"className":["custom-block-body"]},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"If you call "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"setDatasource()"}]},{"type":"text","value":" the grid will act assuming\nit's a new datasource, resetting the block cache. However you can pass in the same datasource instance.\nSo your application, for example, might have one instance of a datasource that is aware of some\nexternal context (e.g. the business date selected for a report, or the 'bank ATM instance' data you are\nconnecting to), and when the context changes, you want to reset, but still keep the same datasource\ninstance. In this case, just call "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"setDatasource()"}]},{"type":"text","value":" and pass the same datasource in again."}]}]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"datasource-interface","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#datasource-interface","ariaLabel":"datasource interface permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Datasource Interface"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"In a nutshell, every time the grid wants more rows, it will call "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRows()"}]},{"type":"text","value":" on the datasource. The\ndatasource responds with the rows requested. Your datasource for infinite scrolling should implement\nthe "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"IDatasource"}]},{"type":"text","value":" interface:"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{},"children":[{"type":"element","tagName":"interface-documentation","properties":{"interfacename":"IDatasource","config":"{\"overrideBottomMargin\":\"1rem\"}"},"children":[]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRows()"}]},{"type":"text","value":" method takes the "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"IGetRowsParams"}]},{"type":"text","value":" parameters:"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{},"children":[{"type":"element","tagName":"interface-documentation","properties":{"interfacename":"IGetRowsParams"},"children":[]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"getrows","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#getrows","ariaLabel":"getrows permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"getRows()"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRows()"}]},{"type":"text","value":" function is called by the grid to load a block of rows into the browser-side cache of blocks.\nIt takes the following as parameters:"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"text","value":"The "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"startRow"}]},{"type":"text","value":" and "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"endRow"}]},{"type":"text","value":" define the range expected for the call. For example, if block size is 100, the "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRows"}]},{"type":"text","value":" function will be called with "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"startRow: 0"}]},{"type":"text","value":" and "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"endRow: 100"}]},{"type":"text","value":" and the grid will expect a result with 100 rows (rows 0 to 99)."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"successCallback(rowsThisBlock, lastRow)"}]},{"type":"text","value":" should be called when you successfully receive data from the server. The callback has the following parameters:"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"rowsThisBlock"}]},{"type":"text","value":" should be the rows you have received for the current block."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"lastRow"}]},{"type":"text","value":" should be the index of the last row if known."}]},{"type":"text","value":"\n"}]},{"type":"text","value":"\n"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"text","value":"The "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"failCallback()"}]},{"type":"text","value":" should be called if the loading failed. Either one of "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"successCallback()"}]},{"type":"text","value":" or "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"failCallback()"}]},{"type":"text","value":" should be called exactly once."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"text","value":"The "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"filterModel()"}]},{"type":"text","value":" and "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"sortModel()"}]},{"type":"text","value":" are passed for doing server-side sorting and filtering."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"text","value":"The "},{"type":"element","tagName":"a","properties":{"href":"/archive/28.0.0/context/"},"children":[{"type":"text","value":"context"}]},{"type":"text","value":" is just passed as is and nothing to do with infinite scrolling. It's there if you need it for providing application state to your datasource."}]},{"type":"text","value":"\n"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"setting-last-row-index","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#setting-last-row-index","ariaLabel":"setting last row index permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Setting Last Row Index"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The success callback parameter "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"lastRow"}]},{"type":"text","value":" is used to move the grid out of infinite scrolling. If the last row is known, then this should be the index of the last row. If the last row is unknown, then leave blank ("},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"undefined"}]},{"type":"text","value":", "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"null"}]},{"type":"text","value":" or "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"-1"}]},{"type":"text","value":"). This attribute is only used when in infinite scrolling. Once the total record count is known, the "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"lastRow"}]},{"type":"text","value":" parameter will be ignored."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Under normal operation, you will return "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"null"}]},{"type":"text","value":" or "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"undefined"}]},{"type":"text","value":" for "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"lastRow"}]},{"type":"text","value":" for every time "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRows()"}]},{"type":"text","value":" is called with the exception of when you get to the last block. For example, if block size is 100 and you have 250 rows, when "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRows()"}]},{"type":"text","value":" is called for the third time, you will return back 50 rows in the result and set "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"rowCount"}]},{"type":"text","value":" to 250. This will then get the grid to set the scrollbar to fit exactly 250 rows and will not ask for any more blocks."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h2","properties":{"id":"block-cache","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#block-cache","ariaLabel":"block cache permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Block Cache"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The grid keeps the blocks in a cache. You have the choice to never expire the blocks, or to set a limit to the number of blocks kept. If you set a limit, then as you scroll down, previous blocks will be discarded and will be loaded again if the user scrolls back up. The maximum blocks to keep in the cache is set using the "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"maxBlocksInCache"}]},{"type":"text","value":" property."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"block-size","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#block-size","ariaLabel":"block size permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Block Size"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The block size is set using the grid property "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"cacheBlockSize"}]},{"type":"text","value":". This is how many rows each block in the cache should contain. Each call to your datasource will be for one block."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"debounce-block-loading","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#debounce-block-loading","ariaLabel":"debounce block loading permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Debounce Block Loading"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"It is also possible to debounce the loading to prevent blocks loading until scrolling has stopped. This can be configured using: "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"blockLoadDebounceMillis"}]},{"type":"text","value":"."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"aggregation-and-grouping","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#aggregation-and-grouping","ariaLabel":"aggregation and grouping permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Aggregation and Grouping"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Aggregation and grouping are not available in infinite scrolling. This is because to do so would require the grid knowing the entire dataset, which is not possible when using the Infinite Row Model. If you need aggregation and / or grouping for large datasets, check the "},{"type":"element","tagName":"a","properties":{"href":"/archive/28.0.0/server-side-model/"},"children":[{"type":"text","value":"Server-Side Row Model"}]},{"type":"text","value":" for doing aggregations on the server-side."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"sorting--filtering","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#sorting--filtering","ariaLabel":"sorting  filtering permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Sorting & Filtering"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The grid cannot do sorting or filtering for you, as it does not have all of the data. Sorting or filtering must be done on the server-side. For this reason, if the sort or filter changes, the grid will use the datasource to get the data again and provide the sort and filter state to you."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"simple-example-no-sorting-or-filtering","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#simple-example-no-sorting-or-filtering","ariaLabel":"simple example no sorting or filtering permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Simple Example: No Sorting or Filtering"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The example below makes use of infinite scrolling and caching. Notice that the grid will load more data when you bring the scroll all the way to the bottom."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{},"children":[{"type":"element","tagName":"grid-example","properties":{"title":"Simple Example","name":"simple","type":"mixed","options":"{ \"modules\": [\"infinite\"] }"},"children":[]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"selection","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#selection","ariaLabel":"selection permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Selection"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Selection works on the rows in infinite scrolling by using the "},{"type":"element","tagName":"a","properties":{"href":"/archive/28.0.0/row-ids/"},"children":[{"type":"text","value":"Row IDs"}]},{"type":"text","value":" of the Row Nodes. If you do not provide Keys for the Row Nodes, the index of the Row Node will be used. Using the index of the row breaks down when (server-side) filtering or sorting, as these change the index of the Rows. For this reason, if you do not provide your own "},{"type":"element","tagName":"a","properties":{"href":"/archive/28.0.0/row-ids/"},"children":[{"type":"text","value":"Row IDs"}]},{"type":"text","value":", then selection is cleared if sort or filter is changed."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"To provide your own "},{"type":"element","tagName":"a","properties":{"href":"/archive/28.0.0/row-ids/"},"children":[{"type":"text","value":"Row IDs"}]},{"type":"text","value":", implement the method "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRowId(params)"}]},{"type":"text","value":", which should return the Key for the data."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{"className":["gatsby-highlight"],"dataLanguage":"js"},"children":[{"type":"element","tagName":"pre","properties":{"className":["language-js"]},"children":[{"type":"element","tagName":"code","properties":{"className":["language-js"]},"children":[{"type":"text","value":"gridOptions"},{"type":"element","tagName":"span","properties":{"className":["token","punctuation"]},"children":[{"type":"text","value":"."}]},{"type":"element","tagName":"span","properties":{"className":["token","function-variable","function"]},"children":[{"type":"text","value":"getRowId"}]},{"type":"element","tagName":"span","properties":{"className":["token","operator"]},"children":[{"type":"text","value":":"}]},{"type":"text","value":" 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you have "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRowId()"}]},{"type":"text","value":" implemented, selection will persist across sorts and filters."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"example-sorting-filtering-and-selection","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#example-sorting-filtering-and-selection","ariaLabel":"example sorting filtering and selection permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 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When this happens, the datasource is called again with the new sort options."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The columns "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"Age"}]},{"type":"text","value":", "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"Country"}]},{"type":"text","value":" and "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"Year"}]},{"type":"text","value":" can be filtered. When this happens, the datasource is called again with the new filtering options."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"When a row is selected, the selection will remain inside the grid, even if the grid gets sorted or filtered. Notice that when the grid loads a selected row (e.g. select first row, scroll down so the first block is removed from cache, then scroll back up again) the row is not highlighted until the row is loaded from the server. This is because the grid is waiting to see what the ID is of the row to be loaded."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{"className":["custom-block","note"]},"children":[{"type":"element","tagName":"div","properties":{"className":["custom-block-body"]},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The example below uses AG Grid Enterprise, to demonstrate the set filter with server-side filtering. 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17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"More Control via Properties and API"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Infinite scrolling has a cache working behind the scenes. The following properties and API are provided to give you control of the cache."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"properties","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#properties","ariaLabel":"properties permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Properties"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{},"children":[{"type":"element","tagName":"api-documentation","properties":{"source":"grid-options/properties.json","section":"infiniteRowModel","names":"[\"cacheOverflowSize\", \"maxConcurrentDatasourceRequests\", \"maxBlocksInCache\", \"infiniteInitialRowCount\", \"cacheBlockSize\"]"},"children":[]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"api","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#api","ariaLabel":"api permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"API"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{},"children":[{"type":"element","tagName":"api-documentation","properties":{"source":"grid-api/api.json","section":"infiniteScrolling"},"children":[]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{"className":["custom-block","note"]},"children":[{"type":"element","tagName":"div","properties":{"className":["custom-block-body"]},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Adding / removing rows directly in the grid for infinite scrolling is not recommended as it will complicate your application. It will make your life easier if you update the data on the server and refresh the block cache."}]}]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"example-using-cache-api-methods","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#example-using-cache-api-methods","ariaLabel":"example using cache api methods permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Example: Using Cache API Methods"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"Below demonstrates the different API methods via the buttons. The example outputs a lot of debugging items to the console because the grid property "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"debug=true"}]},{"type":"text","value":" is set. The buttons are as follows:"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Insert Rows"}]},{"type":"text","value":": Inserts 5 rows at row index 2 from the server, then refreshes the grid."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Delete Rows"}]},{"type":"text","value":": Deletes 10 rows at row index 3 from the server, then refreshes the grid."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Set Row Count"}]},{"type":"text","value":": Sets the row count to 200. This adjusts the vertical scroll to show 200 rows. If the scroll is positioned at the end, this results in the grid automatically re-adjusting as it seeks ahead for the next block of data."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Print Info"}]},{"type":"text","value":": Prints "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"rowCount"}]},{"type":"text","value":" and "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"maxFound"}]},{"type":"text","value":" to the console."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Jump to 500"}]},{"type":"text","value":": Positions the grid so that row 500 is displayed."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Print Cache State"}]},{"type":"text","value":": Debugging method, to see the state of the cache."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Set Prices High & Set Prices Low"}]},{"type":"text","value":": Sets the prices on the server-side to either high or low prices. This will not impact the grid until after a block cache is loaded. Use these buttons to then further test the refresh and purge methods."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Refresh Cache"}]},{"type":"text","value":": Calls for the cache to be refreshed."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Purge Cache"}]},{"type":"text","value":": Calls for the cache to be purged."}]},{"type":"text","value":"\n"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The example also makes each Honda row bold - demonstrating that the callbacks "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRowStyle"}]},{"type":"text","value":" and "},{"type":"element","tagName":"code","properties":{},"children":[{"type":"text","value":"getRowClass"}]},{"type":"text","value":"\nget called after the data is set as well as when the row is created (when the data may not yet be available)."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{},"children":[{"type":"element","tagName":"grid-example","properties":{"title":"Insert And Remove Example","name":"insert-remove","type":"mixed","options":"{ \"modules\": [\"infinite\"] }"},"children":[]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h2","properties":{"id":"changing-columns","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#changing-columns","ariaLabel":"changing columns permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Changing Columns"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"element","tagName":"a","properties":{"href":"/archive/28.0.0/column-updating-definitions/"},"children":[{"type":"text","value":"Changing columns"}]},{"type":"text","value":" is possible using infinite scroll and it does not require the data getting fetched again from the server. If the change of columns impacts the sort or filter (i.e. a column with a sort or filter applied is removed), the grid will fetch data again similar to how data is fetched again after the user changes the sort or filter explicitly."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The example below demonstrates changing columns on the infinite row model. The following can be noted:"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"ul","properties":{},"children":[{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"text","value":"Hit the buttons 'Show Year' and 'Hide Year'. Notice that the data is not re-fetched."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"text","value":"Add a sort or filter to Age column. When the sort or filter is applied the data is re-fetched. However once fetched, you can add and remove the Year column without re-fetching the data."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"li","properties":{},"children":[{"type":"text","value":"Add a sort or filter to the Year column. When the sort or filter is applied the data is re-fetched. Now remove the Year column and the data is re-fetched again as the sort or filter has changed."}]},{"type":"text","value":"\n"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{},"children":[{"type":"element","tagName":"grid-example","properties":{"title":"Changing Columns","name":"changing-columns","type":"generated","options":"{ \"modules\": [\"infinite\"] }"},"children":[]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h2","properties":{"id":"pagination","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#pagination","ariaLabel":"pagination permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Pagination"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"As with all row models, it is possible to enable pagination with infinite scrolling. With infinite scrolling, it is possible to mix and match with the configuration to achieve different effects. The following examples are presented:"}]},{"type":"text","value":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"},{"type":"element","tagName":"table","properties":{},"children":[{"type":"element","tagName":"thead","properties":{},"children":[{"type":"element","tagName":"tr","properties":{},"children":[{"type":"element","tagName":"th","properties":{},"children":[{"type":"text","value":"Example"}]},{"type":"element","tagName":"th","properties":{},"children":[{"type":"text","value":"Page Size"}]},{"type":"element","tagName":"th","properties":{},"children":[{"type":"text","value":"Block Size"}]},{"type":"element","tagName":"th","properties":{},"children":[{"type":"text","value":"Comment"}]}]}]},{"type":"element","tagName":"tbody","properties":{},"children":[{"type":"element","tagName":"tr","properties":{},"children":[{"type":"element","tagName":"td","properties":{},"children":[{"type":"text","value":"Example 1"}]},{"type":"element","tagName":"td","properties":{},"children":[{"type":"text","value":"Auto"}]},{"type":"element","tagName":"td","properties":{},"children":[{"type":"text","value":"Large"}]},{"type":"element","tagName":"td","properties":{},"children":[{"type":"text","value":"Most Recommended"}]}]},{"type":"element","tagName":"tr","properties":{},"children":[{"type":"element","tagName":"td","properties":{},"children":[{"type":"text","value":"Example 2"}]},{"type":"element","tagName":"td","properties":{},"children":[{"type":"text","value":"Equal"}]},{"type":"element","tagName":"td","properties":{},"children":[{"type":"text","value":"Equal"}]},{"type":"element","tagName":"td","properties":{},"children":[{"type":"text","value":"Recommended Sometimes"}]}]}]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{"className":["custom-block","note"]},"children":[{"type":"element","tagName":"div","properties":{"className":["custom-block-body"]},"children":[{"type":"element","tagName":"p","properties":{},"children":[{"type":"element","tagName":"strong","properties":{},"children":[{"type":"text","value":"Having smaller infinite blocks size than your pagination page size is not supported"}]},{"type":"text","value":" |"},{"type":"element","tagName":"br","properties":{},"children":[]},{"type":"element","tagName":"br","properties":{},"children":[]},{"type":"text","value":"You must have infinite block size greater than or equal to the pagination page size. If you have a smaller block size, the grid will not fetch enough rows to display one page. This breaks how infinite scrolling works and is not supported."}]}]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"example-1-auto-pagination-page-size-large-infinite-block-size","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#example-1-auto-pagination-page-size-large-infinite-block-size","ariaLabel":"example 1 auto pagination page size large infinite block size permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Example 1: Auto Pagination Page Size, Large Infinite Block Size"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"This example is the recommended approach. The infinite block size is larger than the pages size, so the grid loads data for a few pages, allowing the user to hit 'next' a few times before a server sided call is needed."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{},"children":[{"type":"element","tagName":"grid-example","properties":{"title":"Block Larger Than Page","name":"block-larger-page","type":"mixed","options":"{ \"enterprise\": true, \"exampleHeight\": 615, \"modules\": [\"infinite\", \"setfilter\", \"menu\", \"columnpanel\"] }"},"children":[]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h3","properties":{"id":"example-2-equal-pagination-page-size-and-large-infinite-block-size","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#example-2-equal-pagination-page-size-and-large-infinite-block-size","ariaLabel":"example 2 equal pagination page size and large infinite block size permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Example 2: Equal Pagination Page Size and Large Infinite Block Size"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"This example demonstrates having the page and block sizes equal. Here the server is hit every time a new page is navigated to."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"div","properties":{},"children":[{"type":"element","tagName":"grid-example","properties":{"title":"Block Equal Than Page","name":"block-equal-page","type":"mixed","options":"{ \"enterprise\": true, \"exampleHeight\": 615, \"modules\": [\"infinite\", \"setfilter\", \"menu\", \"columnpanel\"] }"},"children":[]}]},{"type":"text","value":"\n"},{"type":"element","tagName":"h2","properties":{"id":"overlays","style":"position:relative;"},"children":[{"type":"element","tagName":"a","properties":{"href":"#overlays","ariaLabel":"overlays permalink","className":["anchor","before"]},"children":[{"type":"element","tagName":"svg","properties":{"ariaHidden":"true","focusable":"false","dataPrefix":"fas","dataIcon":"link","className":["svg-inline--fa","fa-link"],"role":"img","xmlns":"http://www.w3.org/2000/svg","viewBox":"0 0 512 512"},"children":[{"type":"element","tagName":"path","properties":{"fill":"currentColor","d":"M326.612 185.391c59.747 59.809 58.927 155.698.36 214.59-.11.12-.24.25-.36.37l-67.2 67.2c-59.27 59.27-155.699 59.262-214.96 0-59.27-59.26-59.27-155.7 0-214.96l37.106-37.106c9.84-9.84 26.786-3.3 27.294 10.606.648 17.722 3.826 35.527 9.69 52.721 1.986 5.822.567 12.262-3.783 16.612l-13.087 13.087c-28.026 28.026-28.905 73.66-1.155 101.96 28.024 28.579 74.086 28.749 102.325.51l67.2-67.19c28.191-28.191 28.073-73.757 0-101.83-3.701-3.694-7.429-6.564-10.341-8.569a16.037 16.037 0 0 1-6.947-12.606c-.396-10.567 3.348-21.456 11.698-29.806l21.054-21.055c5.521-5.521 14.182-6.199 20.584-1.731a152.482 152.482 0 0 1 20.522 17.197zM467.547 44.449c-59.261-59.262-155.69-59.27-214.96 0l-67.2 67.2c-.12.12-.25.25-.36.37-58.566 58.892-59.387 154.781.36 214.59a152.454 152.454 0 0 0 20.521 17.196c6.402 4.468 15.064 3.789 20.584-1.731l21.054-21.055c8.35-8.35 12.094-19.239 11.698-29.806a16.037 16.037 0 0 0-6.947-12.606c-2.912-2.005-6.64-4.875-10.341-8.569-28.073-28.073-28.191-73.639 0-101.83l67.2-67.19c28.239-28.239 74.3-28.069 102.325.51 27.75 28.3 26.872 73.934-1.155 101.96l-13.087 13.087c-4.35 4.35-5.769 10.79-3.783 16.612 5.864 17.194 9.042 34.999 9.69 52.721.509 13.906 17.454 20.446 27.294 10.606l37.106-37.106c59.271-59.259 59.271-155.699.001-214.959z"},"children":[]}]}]},{"type":"text","value":"Overlays"}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"The infinite row model does not use "},{"type":"element","tagName":"a","properties":{"href":"/archive/28.0.0/overlays/"},"children":[{"type":"text","value":"overlays"}]},{"type":"text","value":" like the Client-Side Row Model. It does not use 'loading' overlay as rows load in blocks and it would be wrong to hide all the grid because some rows are getting loaded. The grid does not use 'no rows' overlay as the 'no rows' could be because you have a filter set, and a grid with a filter shows an empty grid when no rows pass the filter."}]},{"type":"text","value":"\n"},{"type":"element","tagName":"p","properties":{},"children":[{"type":"text","value":"If you do want to show overlays, then please see "},{"type":"element","tagName":"a","properties":{"href":"/archive/28.0.0/overlays/"},"children":[{"type":"text","value":"overlays"}]},{"type":"text","value":" section for details on how to show the overlays manually."}]}],"data":{"quirksMode":false}},"frontmatter":{"title":"Infinite Row Model","version":null,"enterprise":null,"description":null},"headings":[{"id":"how-it-works","depth":2,"value":"How it Works"},{"id":"turning-on-infinite-scrolling","depth":2,"value":"Turning On Infinite Scrolling"},{"id":"datasource","depth":2,"value":"Datasource"},{"id":"changing-the-datasource","depth":3,"value":"Changing the Datasource"},{"id":"datasource-interface","depth":3,"value":"Datasource Interface"},{"id":"getrows","depth":3,"value":"getRows()"},{"id":"setting-last-row-index","depth":3,"value":"Setting Last Row Index"},{"id":"block-cache","depth":2,"value":"Block Cache"},{"id":"block-size","depth":3,"value":"Block Size"},{"id":"debounce-block-loading","depth":3,"value":"Debounce Block Loading"},{"id":"aggregation-and-grouping","depth":3,"value":"Aggregation and Grouping"},{"id":"sorting--filtering","depth":3,"value":"Sorting & Filtering"},{"id":"simple-example-no-sorting-or-filtering","depth":3,"value":"Simple Example: No Sorting or Filtering"},{"id":"selection","depth":3,"value":"Selection"},{"id":"example-sorting-filtering-and-selection","depth":3,"value":"Example: Sorting, Filtering and Selection"},{"id":"specify-selectable-rows","depth":2,"value":"Specify Selectable Rows"},{"id":"configuring-a-bit-differently","depth":3,"value":"Configuring a Bit Differently"},{"id":"loading-spinner","depth":3,"value":"Loading Spinner"},{"id":"more-control-via-properties-and-api","depth":3,"value":"More Control via Properties and API"},{"id":"properties","depth":3,"value":"Properties"},{"id":"api","depth":3,"value":"API"},{"id":"example-using-cache-api-methods","depth":3,"value":"Example: Using Cache API Methods"},{"id":"changing-columns","depth":2,"value":"Changing Columns"},{"id":"pagination","depth":2,"value":"Pagination"},{"id":"example-1-auto-pagination-page-size-large-infinite-block-size","depth":3,"value":"Example 1: Auto Pagination Page Size, Large Infinite Block Size"},{"id":"example-2-equal-pagination-page-size-and-large-infinite-block-size","depth":3,"value":"Example 2: Equal Pagination Page Size and Large Infinite Block Size"},{"id":"overlays","depth":2,"value":"Overlays"}]}},"pageContext":{"frameworks":["javascript","angular","react","vue"],"framework":"react","srcPath":"/infinite-scrolling","pageName":"infinite-scrolling"}},
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