Dynamic Column Width Adjustment in Virtualized Table

Provide an example of dynamically adjusting column widths in a virtualized React TanStack Table setup, based on the content of cells or predefined widths.
import { useMaterialReactTable, useMRT_ColumnVirtualizer } from 'material-react-table';
import { useMemo } from 'react';
Import necessary hooks from material-react-table and React's useMemo.
const calculateDynamicWidth = (data) => {
  // Example logic to calculate width
  const maxWidth = 400;
  const minWidth = 150;
  const charWidth = 10;
  return Math.min(Math.max(data.reduce((acc, item) => Math.max(acc, item.length), 0) * charWidth, minWidth), maxWidth);
Defines a function to calculate dynamic width based on the content length. Adjust maxWidth, minWidth, and charWidth based on your requirements.
const ExampleTable = ({ columns, data }) => {
  // Adjust column widths dynamically
  const dynamicColumns = useMemo(() => => ({
    width: calculateDynamicWidth( => row[column.accessor]))
  })), [columns, data]);

  const tableInstance = useMaterialReactTable({
    columns: dynamicColumns,
    enableColumnVirtualization: true,
    columnVirtualizerOptions: {},

  const { getColumnVirtualizerProps } = useMRT_ColumnVirtualizer(tableInstance);

  // Render your table UI using tableInstance and getColumnVirtualizerProps
Wraps the table component to dynamically adjust each column's width based on its content. The calculateDynamicWidth function is used to determine each column's width. The useMaterialReactTable hook initializes the table with these dynamic column widths and enables column virtualization.