It is possible to nest Master / Detail grids. There is no special configuration required to do this, you just configure another Detail Grid to also act as a Master Grid.
The following snippet illustrates how to achieve nesting by configuring Detail Grids to also act as Master Grids.
// Level 3 (bottom level), Detail Grid only, no Master / Detail configuration
const gridOptionsLevel3 = {
...
}
// Level 2, configured to be a Master Grid and use Level 3 grid as Detail Grid,
const gridOptionsLevel2 = {
masterDetail: true,
detailCellRendererParams: {
detailGridOptions: gridOptionsLevel3,
getDetailRowData: function (params) {
...
}
}
...
}
// Level 1, configured to be a Master Grid and use Level 2 grid as Detail Grid,
const gridOptionsLevel1 = {
masterDetail: true,
detailCellRendererParams: {
detailGridOptions: gridOptionsLevel2,
getDetailRowData: function (params) {
...
}
}
...
}Below shows a simple Master Detail setup with two levels of Master Detail. The example is kept short (few rows and columns) so as to focus on the nesting.
Example Copy Link
import { Component } from "@angular/core";
import { AgGridAngular } from "ag-grid-angular";
import {
ClientSideRowModelModule,
ColDef,
ColGroupDef,
GridApi,
GridOptions,
GridReadyEvent,
IDetailCellRendererParams,
ModuleRegistry,
enableDevValidations,
} from "ag-grid-community";
import {
ColumnMenuModule,
ColumnsToolPanelModule,
ContextMenuModule,
MasterDetailModule,
} from "ag-grid-enterprise";
if (process.env.NODE_ENV !== "production") {
// Enable extended validations only for development
enableDevValidations();
}
ModuleRegistry.registerModules([
ClientSideRowModelModule,
ColumnsToolPanelModule,
MasterDetailModule,
ColumnMenuModule,
ContextMenuModule,
]);
@Component({
selector: "my-app",
standalone: true,
imports: [AgGridAngular],
template: `<ag-grid-angular
style="width: 100%; height: 100%;"
[rowData]="rowData"
[columnDefs]="columnDefs"
[defaultColDef]="defaultColDef"
[groupDefaultExpanded]="groupDefaultExpanded"
[masterDetail]="true"
[detailCellRendererParams]="detailCellRendererParams"
/> `,
})
export class AppComponent {
rowData: any[] | null = [
{
a1: "level 1 - 111",
b1: "level 1 - 222",
children: [
{
a2: "level 2 - 333",
b2: "level 2 - 444",
children: [
{ a3: "level 3 - 5551", b3: "level 3 - 6661" },
{ a3: "level 3 - 5552", b3: "level 3 - 6662" },
{ a3: "level 3 - 5553", b3: "level 3 - 6663" },
{ a3: "level 3 - 5554", b3: "level 3 - 6664" },
{ a3: "level 3 - 5555", b3: "level 3 - 6665" },
{ a3: "level 3 - 5556", b3: "level 3 - 6666" },
],
},
],
},
{
a1: "level 1 - 111",
b1: "level 1 - 222",
children: [
{
a2: "level 2 - 333",
b2: "level 2 - 444",
children: [
{ a3: "level 3 - 5551", b3: "level 3 - 6661" },
{ a3: "level 3 - 5552", b3: "level 3 - 6662" },
{ a3: "level 3 - 5553", b3: "level 3 - 6663" },
{ a3: "level 3 - 5554", b3: "level 3 - 6664" },
{ a3: "level 3 - 5555", b3: "level 3 - 6665" },
{ a3: "level 3 - 5556", b3: "level 3 - 6666" },
],
},
],
},
];
columnDefs: ColDef[] = [
{ field: "a1", cellRenderer: "agGroupCellRenderer" },
{ field: "b1" },
];
defaultColDef: ColDef = {
flex: 1,
};
groupDefaultExpanded = 1;
detailCellRendererParams: any = {
// level 2 grid options
detailGridOptions: {
columnDefs: [
{ field: "a2", cellRenderer: "agGroupCellRenderer" },
{ field: "b2" },
],
defaultColDef: {
flex: 1,
},
groupDefaultExpanded: 1,
masterDetail: true,
detailRowHeight: 240,
detailCellRendererParams: {
// level 3 grid options
detailGridOptions: {
columnDefs: [
{ field: "a3", cellRenderer: "agGroupCellRenderer" },
{ field: "b3" },
],
defaultColDef: {
flex: 1,
},
},
getDetailRowData: (params) => {
params.successCallback(params.data.children);
},
} as IDetailCellRendererParams,
},
getDetailRowData: (params) => {
params.successCallback(params.data.children);
},
} as IDetailCellRendererParams;
}
import '@angular/compiler';
import { provideHttpClient } from '@angular/common/http';
import { enableProdMode } from '@angular/core';
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
if (new URLSearchParams(window.location.search).get('prod') !== 'false') {
enableProdMode();
}
const app = bootstrapApplication(AppComponent, {
providers: [provideHttpClient()],
});
Example: Auto Height Copy Link
The next example is identical to the previous except all the Detail Grids have property detailRowAutoHeight=true. Notice that this removes all vertical scrolls from all the Detail Grids, leaving just the main Master Grid with a vertical scroll.
import { Component } from "@angular/core";
import { AgGridAngular } from "ag-grid-angular";
import {
ClientSideRowModelModule,
ColDef,
ColGroupDef,
GridApi,
GridOptions,
GridReadyEvent,
IDetailCellRendererParams,
ModuleRegistry,
enableDevValidations,
} from "ag-grid-community";
import {
ColumnMenuModule,
ColumnsToolPanelModule,
ContextMenuModule,
MasterDetailModule,
} from "ag-grid-enterprise";
if (process.env.NODE_ENV !== "production") {
// Enable extended validations only for development
enableDevValidations();
}
ModuleRegistry.registerModules([
ClientSideRowModelModule,
ColumnsToolPanelModule,
MasterDetailModule,
ColumnMenuModule,
ContextMenuModule,
]);
@Component({
selector: "my-app",
standalone: true,
imports: [AgGridAngular],
template: `<ag-grid-angular
style="width: 100%; height: 100%;"
[rowData]="rowData"
[columnDefs]="columnDefs"
[defaultColDef]="defaultColDef"
[groupDefaultExpanded]="groupDefaultExpanded"
[masterDetail]="true"
[detailRowAutoHeight]="true"
[detailCellRendererParams]="detailCellRendererParams"
/> `,
})
export class AppComponent {
rowData: any[] | null = [
{
a1: "level 1 - 111",
b1: "level 1 - 222",
children: [
{
a2: "level 2 - 333",
b2: "level 2 - 444",
children: [
{ a3: "level 3 - 5551", b3: "level 3 - 6661" },
{ a3: "level 3 - 5552", b3: "level 3 - 6662" },
{ a3: "level 3 - 5553", b3: "level 3 - 6663" },
{ a3: "level 3 - 5554", b3: "level 3 - 6664" },
{ a3: "level 3 - 5555", b3: "level 3 - 6665" },
{ a3: "level 3 - 5556", b3: "level 3 - 6666" },
],
},
],
},
{
a1: "level 1 - 111",
b1: "level 1 - 222",
children: [
{
a2: "level 2 - 333",
b2: "level 2 - 444",
children: [
{ a3: "level 3 - 5551", b3: "level 3 - 6661" },
{ a3: "level 3 - 5552", b3: "level 3 - 6662" },
{ a3: "level 3 - 5553", b3: "level 3 - 6663" },
{ a3: "level 3 - 5554", b3: "level 3 - 6664" },
{ a3: "level 3 - 5555", b3: "level 3 - 6665" },
{ a3: "level 3 - 5556", b3: "level 3 - 6666" },
],
},
],
},
];
columnDefs: ColDef[] = [
{ field: "a1", cellRenderer: "agGroupCellRenderer" },
{ field: "b1" },
];
defaultColDef: ColDef = {
flex: 1,
};
groupDefaultExpanded = 1;
detailCellRendererParams: any = {
// level 2 grid options
detailGridOptions: {
columnDefs: [
{ field: "a2", cellRenderer: "agGroupCellRenderer" },
{ field: "b2" },
],
defaultColDef: {
flex: 1,
},
groupDefaultExpanded: 1,
masterDetail: true,
detailRowHeight: 240,
detailRowAutoHeight: true,
detailCellRendererParams: {
// level 3 grid options
detailGridOptions: {
columnDefs: [
{ field: "a3", cellRenderer: "agGroupCellRenderer" },
{ field: "b3" },
],
defaultColDef: {
flex: 1,
},
},
getDetailRowData: (params) => {
params.successCallback(params.data.children);
},
} as IDetailCellRendererParams,
},
getDetailRowData: (params) => {
params.successCallback(params.data.children);
},
} as IDetailCellRendererParams;
}
import '@angular/compiler';
import { provideHttpClient } from '@angular/common/http';
import { enableProdMode } from '@angular/core';
import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
if (new URLSearchParams(window.location.search).get('prod') !== 'false') {
enableProdMode();
}
const app = bootstrapApplication(AppComponent, {
providers: [provideHttpClient()],
});