AdaptTable for Angular Material

Nested tables in Angular Material

Open a row and the panel holds another Angular Material table — the same component, not a hand-built list. Each person has recent orders; the inner table has its own columns and row keys.

nestedTable() mounts the kit's DataTable with defaults that keep the two tables from fighting over the URL. Rows with no nested table can still use rowDetail().

The expand chevron and both tables are Angular Material.

The code

import { Component, input } from "@angular/core";
import type { ColumnDef, NestedTableDefaults } from "@adapttable/angular";
import { AdaptDataTable } from "@adapttable/angular-material";
import { nestedTable } from "@adapttable/angular-material/nested-table";

interface Order {
  id: string;
  item: string;
}

interface Customer {
  id: string;
  name: string;
  orders: Order[];
}

@Component({
  selector: "app-orders",
  imports: [AdaptDataTable],
  template: `
    <adapt-data-table
      [data]="row().orders"
      [columns]="columns"
      [rowKey]="rowKey"
      [urlSync]="defaults().urlSync"
      [searchable]="defaults().searchable"
      [tableLabel]="defaults().tableLabel"
    />
  `,
})
export class Orders {
  readonly row = input.required<Customer>();
  readonly defaults = input.required<NestedTableDefaults>();
  readonly columns: ColumnDef<Order>[] = [{ key: "item" }];
  readonly rowKey = (order: Order) => order.id;
}

@Component({
  selector: "app-customers",
  imports: [AdaptDataTable],
  template: `
    <adapt-data-table
      [data]="rows()"
      [columns]="columns"
      [rowKey]="rowKey"
      [features]="features"
    />
  `,
})
export class Customers {
  readonly rows = input.required<readonly Customer[]>();
  readonly columns: ColumnDef<Customer>[] = [{ key: "name" }];
  readonly rowKey = (row: Customer) => row.id;
  readonly features = [
    nestedTable<Customer>((row) => ({
      label: `Orders for ${row.name}`,
      table: Orders,
    })),
  ];
}

Install

# Follow the kit setup guide for compatible peers
pnpm add @adapttable/angular-material @adapttable/angular @angular/material@22.2.1 @angular/cdk@22.2.1 @angular/forms@^22 rxjs@^7.8.0

The same feature in the other kits

• Nested tables in Unstyled — Native elements — your own CSS
• Nested tables in NG-ZORRO — Ant Design components for Angular
• Nested tables in ng-bootstrap — Bootstrap styling, Angular overlays
• Nested tables in Angular Aria — Accessible behavior, precise styling
• Nested tables in ngx-bootstrap — Bootstrap controls and overlays
• Nested tables in Angular CDK — CDK behavior, a neutral theme
• Nested tables in Spartan — Sharp borders, subtle elevation
• Nested tables in Taiga UI — Soft surfaces, expressive controls

More Angular Material features

• Filtering in Angular Material — Ranges, selects, an AND/OR tree and chips — all in the URL.
• Column management in Angular Material — Show, hide, reorder, pin and resize — from a menu you did not write.
• Column groups in Angular Material — Spanning headers that collapse to a stub, a kept child, or a custom cell.
• Row selection in Angular Material — A set of ids that survives paging, with bulk actions over it.
• Rows in Angular Material — Pin rows from a 3-dot menu, and merge a team that runs down the page.
• Row reordering in Angular Material — Drag or keyboard moves, announced — the host writes.
• Inline cell editing in Angular Material — Native editors in the cell; every write goes through your handler.
• Row grouping in Angular Material — Drag, select or keyboard grouping, with totals in the headers.
• Aggregation in Angular Material — Footer totals, pinned summaries, group aggregates — not data rows.
• CSV export in Angular Material — One toolbar button, a CSV of the table as it stands.
• Row and column virtualization in Angular Material — 40,000 rows in a scroll box, only the visible ones rendered.
• Tree data in Angular Material — Nesting, chevrons, lazy children, and a tree on phones.
• Mobile cards in Angular Material — Every row becomes a card on phones. Automatically, with the same state.
• Pivot tables in Angular Material — Rows down the side, dimensions across the top, subtotals at every level.
• Saved views in Angular Material — Name an arrangement and restore it from the menu.
• Spreadsheet formulas in Angular Material — ROUND, POWER, SQRT, IF — computed columns, errors in the cell.
• Right-to-left Angular Material data table — Arabic strings, a flipped axis, and a popover that opens from the right edge.
• Live updates in Angular Material — Rows change while you read them. Sort and selection hold.
• Accessible Angular Material data table — Arrow-key focus, a visible ring, forced-colors, and live announcements.
• AI table assistant in Angular Material — Local sort, questions and approved edits with real table outcomes.

Reference: tree-data, row-expansion. More of this kit: AdaptTable for Angular Material, or the live demo.