Material React Table

Material React Table let's you easily change the default widths (sizes) of columns, and has a built-in column resizing draggable handle feature.

'onEnd' | 'onChange'

'onEnd'

Partial<MRT_ColumnDef<TData>>

boolean

 OnChangeFn<ColumnSizingState>

OnChangeFn<ColumnSizingInfoState>

boolean

number

1000

number

40

number

180

Record<string, number>

{}

See TanStack Docs

{}

This was also covered in the Data Columns Guide, but we'll cover it again here.

You can change the width of any column by setting its size option on the column definition. minSize and maxSize are also available to enforce limits during resizing.

const columns = [
  {
    accessorKey: 'id',
    header: 'ID',
    size: 50, //small column
  },
  {
    accessorKey: 'username',
    header: 'Username',
    minSize: 100, //min size enforced during resizing
    maxSize: 200, //max size enforced during resizing
    size: 180, //medium column
  },
  {
    accessorKey: 'email',
    header: 'Email',
    size: 300, //large column
  },
];

You may notice however, that the columns may be not change their size as much as you would expect. This is because the browser treats <th> and <td> elements differently with in a <table> element by default.

You can improve this slightly by changing the table layout to fixed instead of the default auto in the muiTableProps.

<MaterialReactTable
  muiTableProps={{
    sx: {
      tableLayout: 'fixed',
    },
  }}
/>

The Columns will still try to increase their width to take up the full width of the table, but the columns that do have a defined size will have their width respected more.

For further reading on how table-layout fixed vs auto works, we recommend this blog post by CSS-Tricks.

By default, columns will have these size properties defined:

defaultColumn = { minSize: 40, maxSize: 1000, size: 180 }; //units are in px

You can modify the default column widths by setting the defaultColumn prop on the table.

<MaterialReactTable
  columns={columns}
  data={data}
  defaultColumn={{
    minSize: 20, //allow columns to get smaller than default
    maxSize: 9001, //allow columns to get larger than default
    size: 260, //make columns wider by default
  }}
/>

enableColumnResizing is the boolean prop that enables the column resizing feature.

<MaterialReactTable columns={columns} data={data} enableColumnResizing />

You can disable specific columns from being resizable by setting the enableResizing column option to false in their respective column definition.

When Column Resizing is enabled, a CSS table-layout: fixed style is automatically added to the <table> element in order to make the browser respect the widths of the columns more.

The default columnResizeMode is onEnd, which means that the column resizing will only occur after the user has finished dragging the column resize handle and released their mouse. You can change the columnResizeMode to onChange to make the column resizing occur immediately as the user drags the column resize handle.

<MaterialReactTable
  columns={columns}
  data={data}
  enableColumnResizing
  columnResizeMode="onChange"
/>

1import React, { FC, useMemo } from 'react';
2import MaterialReactTable, { MRT_ColumnDef } from 'material-react-table';
3import { data, Person } from './makeData';
4
5const Example: FC = () => {
6  const columns = useMemo<MRT_ColumnDef<Person>[]>(
7    () => [
8      {
9        accessorKey: 'firstName',
10        header: 'First Name', //uses the default width from defaultColumn prop
11      },
12      {
13        accessorKey: 'lastName',
14        header: 'Last Name',
15        enableResizing: false, //disable resizing for this column
16      },
17      {
18        accessorKey: 'email',
19        header: 'Email Address',
20        size: 200, //increase the width of this column
21      },
22      {
23        accessorKey: 'city',
24        header: 'City',
25        size: 120, //decrease the width of this column
26      },
27      {
28        accessorKey: 'country',
29        header: 'Country',
30        size: 100, //decrease the width of this column
31      },
32    ],
33    [],
34  );
35
36  return (
37    <MaterialReactTable
38      columns={columns}
39      data={data}
40      //optionally override the default column widths
41      defaultColumn={{
42        maxSize: 400,
43        minSize: 80,
44        size: 150, //default size is usually 180
45      }}
46      enableColumnResizing
47      columnResizeMode="onChange" //default is "onEnd"
48    />
49  );
50};
51
52export default Example;
53