AdaptTable for ng-bootstrap

Aggregation in ng-bootstrap

aggregate() computes the table footer and each team's groupAggregates; groupFooters closes each team with its subtotal.

Search the table and group totals and the footer recompute from matching rows. The host-owned portfolio total uses pinnedSummaryRows and remains above the scrolling body, independent of filtering and sorting.

All three surfaces render through the same ng-bootstrap controls on desktop and in phone cards.

The code

import { Component, computed, input } from "@angular/core";
import { aggregate, type ColumnDef } from "@adapttable/angular";
import { AdaptDataTable } from "@adapttable/ng-bootstrap";
import { groupingPanel } from "@adapttable/ng-bootstrap/grouping-panel";
import { pinnedSummaryRows } from "@adapttable/ng-bootstrap/pinned-summary-rows";

@Component({
  selector: "app-totals",
  imports: [AdaptDataTable],
  template: `
    <adapt-data-table
      [data]="rows()" [columns]="columns" [rowKey]="rowKey"
      [summaryRow]="budgetSum" [features]="features()"
    />
  `,
})
export class Totals {
  readonly rows = input.required<readonly Person[]>();
  readonly totals = input.required<readonly Person[]>();
  readonly columns: ColumnDef<Person>[] = [
    { key: "name" }, { key: "team" }, { key: "budget" },
  ];
  readonly rowKey = (row: Person) => row.id;
  readonly budgetSum = aggregate<Person>({ budget: "sum" });
  readonly features = computed(() => [
    groupingPanel<Person>("team", {
      groupAggregates: this.budgetSum, groupFooters: true,
    }),
    pinnedSummaryRows<Person>({ top: this.totals() }),
  ]);
}

Install

# Follow the kit setup guide for compatible peers
pnpm add @adapttable/ng-bootstrap @adapttable/angular @ng-bootstrap/ng-bootstrap@21.0.0 @popperjs/core@2.11.8 @angular/forms@^22 @angular/localize@^22 rxjs@^7.4.0

The same feature in the other kits

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

More ng-bootstrap features

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

Reference: row-grouping, pinned-summary-rows, full-width-rows. More of this kit: AdaptTable for ng-bootstrap, or the live demo.