AdaptTable for Base UI

Tree data in Base UI

A tree grid is a different shape from a grouped table: the rows themselves nest, rather than being collected under synthetic headers. Point the table at getChildren or getParentId and it renders the hierarchy.

Children indent under their parent, a chevron opens and closes each branch, and arrow keys walk the tree the way a tree widget should. Expansion is part of the table's state, so it lives in the URL like everything else.

Sorting and filtering apply within the tree rather than flattening it — a branch keeps its shape, and a matching child keeps its ancestors on screen.

The branch toggle is a Base UI Button holding a caret that rotates on open, and the indent is the engine's logical padding on the cell.

The code

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

export function Org({ people, columns }) {
  return (
    <DataTable
      data={people}
      columns={columns}
      rowKey={(row) => row.id}
      getParentId={(row) => row.managerId}
      treeColumn="name"
      urlKey="org"
    />
  );
}

Install

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

The same feature in the other kits

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

More Base UI features

• Filtering in Base UI — Kit-native operators, date ranges, checklists, an AND/OR tree, chips.
• 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, drag-reorder, merge cells, and a 3-dot menu per row.
• Inline cell editing in Base UI — Kit-native editors in the cell; every write goes through your handler.
• Row grouping in Base UI — Nested group headers with counts, subtotals, footers and collapse state.
• Nested tables in Base UI — A real table under a row — same engine, own columns, own keys.
• Export and print in Base UI — CSV, XLSX and PDF from one seam — plus a real print layout.
• Large datasets in Base UI — 100k rows, 40 columns, virtualized rows and columns, sticky chrome.
• 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 — Computed columns typed as formulas, errors reported 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, and every announcement shown as text.

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