AdaptTable for Base UI

Spreadsheet formulas in Base UI

A formula column is a column nobody wrote code for: type =ROUND(budget * 0.15, 0) and the table computes it per row, sorts it, filters it and exports it like any other column.

The engine covers arithmetic including POWER and SQRT, comparison, string joins, IF, and the aggregate functions a footer needs. A bad reference reports in the cell that caused it rather than blanking the table, and a circular reference reports #CYCLE! instead of recursing.

Formula columns serialize to the URL with everything else, so a derived column travels in the same link as the filters it sits beside.

There is no Base UI-specific formula code: a computed column is a column definition like any other, and the cell that holds it is the same cell that holds a declared one.

The code

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

const derived = buildFormulaColumns([
  {
    key: "margin",
    header: "Margin",
    formula: "=ROUND(budget * 0.15, 0)",
  },
  {
    key: "tag",
    header: "Tag",
    formula: '=UPPER(team) & " · " & role',
  },
]);

export function People({ rows, columns }) {
  return (
    <DataTable
      data={rows}
      columns={[...columns, ...derived.columns]}
      rowKey={(row) => row.id}
    />
  );
}

Install

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

The same feature in the other kits

• Spreadsheet formulas in Mantine — Rounded, friendly, filled controls
• Spreadsheet formulas in MUI — Material elevation, uppercase actions
• Spreadsheet formulas in Chakra — Soft teal, generous radius
• Spreadsheet formulas in Ant Design — Compact, tinted header, crisp
• Spreadsheet formulas in Radix — Radix Themes, iris accent
• Spreadsheet formulas in shadcn — Monochrome, ring focus
• Spreadsheet formulas 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.
• Nested tables in Base UI — A real table under a row — same engine, own columns, own keys.
• 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.
• 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: formulas. More of this kit: AdaptTable for Base UI, or the live demo.