AdaptTable for Base UI

Nested tables in Base UI

Open a row and the panel holds another Base UI 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 Base UI.

The chevron is a Base UI Button; the inner table is another Base UI DataTable, so the nested orders are Base UI table rows.

The code

import { DataTable } from "@adapttable/base-ui";
import { nestedTable } from "@adapttable/base-ui/nested-table";

export function People({ rows, columns, orderColumns }) {
  return (
    <DataTable
      data={rows}
      columns={columns}
      rowKey={(row) => row.id}
      features={[
        nestedTable((row: Person) => ({
          label: `Orders for ${row.name}`,
          table: (defaults) => (
            <DataTable
              {...defaults}
              data={row.orders}
              columns={orderColumns}
              rowKey={(order) => order.id}
            />
          ),
        })),
      ]}
    />
  );
}

Install

pnpm add @adapttable/base-ui @adapttable/core @base-ui/react

The same feature in the other kits

• Nested tables in Mantine — Rounded, friendly, filled controls
• Nested tables in MUI — Material elevation, uppercase actions
• Nested tables in Chakra — Soft teal, generous radius
• Nested tables in Ant Design — Compact, tinted header, crisp
• Nested tables in Radix — Radix Themes, iris accent
• Nested tables in shadcn — Monochrome, ring focus
• Nested tables in Tailwind — Unstyled — your own classes

More Base UI features

• Filtering in Base UI — Operators, an AND/OR tree, chips, and find in the same URL.
• Column management in Base UI — Show, hide, reorder, pin and resize — from a menu you did not write.
• Column groups in Base UI — Spanning headers that collapse to a stub, a kept child, or a custom cell.
• Row selection in Base UI — A set of ids that survives paging, with bulk actions over it.
• Rows in Base UI — Pin rows, merge cells, and a 3-dot menu for add and delete.
• Row reordering in Base UI — Flat, grouped and tree moves — keyboard, confirm, host writes.
• Inline cell editing in Base UI — Kit-native editors in the cell; every write goes through your handler.
• Row grouping in Base UI — Drag, keyboard and mobile grouping controls with live aggregation overrides.
• Aggregation in Base UI — Footer totals, pinned summaries, group aggregates — not data rows.
• Export and print in Base UI — Browser files or cancellable server jobs — CSV, XLSX and PDF.
• Row and column virtualization in Base UI — 100k rows, 40 columns, virtualized rows and columns, sticky chrome.
• Tree data in Base UI — Nesting, chevrons, URL expansion, and host-owned tree moves.
• Mobile cards in Base UI — Every row becomes a card on phones. Automatically, with the same state.
• Pivot tables in Base UI — Rows down the side, dimensions across the top, subtotals at every level.
• Saved views in Base UI — Name an arrangement, share it as a link, manage the list in place.
• Spreadsheet formulas in Base UI — ROUND, POWER, SQRT, IF — computed columns, errors in the cell.
• Right-to-left Base UI data table — Arabic strings, a flipped axis, and a popover that opens from the right edge.
• Live updates in Base UI — Rows change while you read them. Sort and selection hold.
• Accessible Base UI data table — Arrow-key focus, a visible ring, forced-colors, and live announcements.
• AI table assistant in Base UI — Native assistant, feature-aware prompts and governed action receipts.

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