Framework
Version
Enterprise

React Example: Column Sizing

tsx
import React from 'react'
import ReactDOM from 'react-dom/client'

import './index.css'

import {
  useReactTable,
  ColumnResizeMode,
  getCoreRowModel,
  ColumnDef,
  flexRender,
  ColumnResizeDirection,
} from '@tanstack/react-table'

type Person = {
  firstName: string
  lastName: string
  age: number
  visits: number
  status: string
  progress: number
}

const defaultData: Person[] = [
  {
    firstName: 'tanner',
    lastName: 'linsley',
    age: 24,
    visits: 100,
    status: 'In Relationship',
    progress: 50,
  },
  {
    firstName: 'tandy',
    lastName: 'miller',
    age: 40,
    visits: 40,
    status: 'Single',
    progress: 80,
  },
  {
    firstName: 'joe',
    lastName: 'dirte',
    age: 45,
    visits: 20,
    status: 'Complicated',
    progress: 10,
  },
]

const defaultColumns: ColumnDef<Person>[] = [
  {
    header: 'Name',
    footer: props => props.column.id,
    columns: [
      {
        accessorKey: 'firstName',
        cell: info => info.getValue(),
        footer: props => props.column.id,
      },
      {
        accessorFn: row => row.lastName,
        id: 'lastName',
        cell: info => info.getValue(),
        header: () => <span>Last Name</span>,
        footer: props => props.column.id,
      },
    ],
  },
  {
    header: 'Info',
    footer: props => props.column.id,
    columns: [
      {
        accessorKey: 'age',
        header: () => 'Age',
        footer: props => props.column.id,
      },
      {
        header: 'More Info',
        columns: [
          {
            accessorKey: 'visits',
            header: () => <span>Visits</span>,
            footer: props => props.column.id,
          },
          {
            accessorKey: 'status',
            header: 'Status',
            footer: props => props.column.id,
          },
          {
            accessorKey: 'progress',
            header: 'Profile Progress',
            footer: props => props.column.id,
          },
        ],
      },
    ],
  },
]

function App() {
  const [data] = React.useState(() => [...defaultData])
  const [columns] = React.useState<typeof defaultColumns>(() => [
    ...defaultColumns,
  ])

  const [columnResizeMode, setColumnResizeMode] =
    React.useState<ColumnResizeMode>('onChange')

  const [columnResizeDirection, setColumnResizeDirection] =
    React.useState<ColumnResizeDirection>('ltr')

  const rerender = React.useReducer(() => ({}), {})[1]

  const table = useReactTable({
    data,
    columns,
    columnResizeMode,
    columnResizeDirection,
    getCoreRowModel: getCoreRowModel(),
    debugTable: true,
    debugHeaders: true,
    debugColumns: true,
  })

  return (
    <div className="p-2">
      <select
        value={columnResizeMode}
        onChange={e => setColumnResizeMode(e.target.value as ColumnResizeMode)}
        className="border p-2 border-black rounded"
      >
        <option value="onEnd">Resize: "onEnd"</option>
        <option value="onChange">Resize: "onChange"</option>
      </select>
      <select
        value={columnResizeDirection}
        onChange={e =>
          setColumnResizeDirection(e.target.value as ColumnResizeDirection)
        }
        className="border p-2 border-black rounded"
      >
        <option value="ltr">Resize Direction: "ltr"</option>
        <option value="rtl">Resize Direction: "rtl"</option>
      </select>
      <div style={{ direction: table.options.columnResizeDirection }}>
        <div className="h-4" />
        <div className="text-xl">{'<table/>'}</div>
        <div className="overflow-x-auto">
          <table
            {...{
              style: {
                width: table.getCenterTotalSize(),
              },
            }}
          >
            <thead>
              {table.getHeaderGroups().map(headerGroup => (
                <tr key={headerGroup.id}>
                  {headerGroup.headers.map(header => (
                    <th
                      {...{
                        key: header.id,
                        colSpan: header.colSpan,
                        style: {
                          width: header.getSize(),
                        },
                      }}
                    >
                      {header.isPlaceholder
                        ? null
                        : flexRender(
                            header.column.columnDef.header,
                            header.getContext()
                          )}
                      <div
                        {...{
                          onDoubleClick: () => header.column.resetSize(),
                          onMouseDown: header.getResizeHandler(),
                          onTouchStart: header.getResizeHandler(),
                          className: `resizer ${
                            table.options.columnResizeDirection
                          } ${
                            header.column.getIsResizing() ? 'isResizing' : ''
                          }`,
                          style: {
                            transform:
                              columnResizeMode === 'onEnd' &&
                              header.column.getIsResizing()
                                ? `translateX(${
                                    (table.options.columnResizeDirection ===
                                    'rtl'
                                      ? -1
                                      : 1) *
                                    (table.getState().columnSizingInfo
                                      .deltaOffset ?? 0)
                                  }px)`
                                : '',
                          },
                        }}
                      />
                    </th>
                  ))}
                </tr>
              ))}
            </thead>
            <tbody>
              {table.getRowModel().rows.map(row => (
                <tr key={row.id}>
                  {row.getVisibleCells().map(cell => (
                    <td
                      {...{
                        key: cell.id,
                        style: {
                          width: cell.column.getSize(),
                        },
                      }}
                    >
                      {flexRender(
                        cell.column.columnDef.cell,
                        cell.getContext()
                      )}
                    </td>
                  ))}
                </tr>
              ))}
            </tbody>
          </table>
        </div>
        <div className="h-4" />
        <div className="text-xl">{'<div/> (relative)'}</div>
        <div className="overflow-x-auto">
          <div
            {...{
              className: 'divTable',
              style: {
                width: table.getTotalSize(),
              },
            }}
          >
            <div className="thead">
              {table.getHeaderGroups().map(headerGroup => (
                <div
                  {...{
                    key: headerGroup.id,
                    className: 'tr',
                  }}
                >
                  {headerGroup.headers.map(header => (
                    <div
                      {...{
                        key: header.id,
                        className: 'th',
                        style: {
                          width: header.getSize(),
                        },
                      }}
                    >
                      {header.isPlaceholder
                        ? null
                        : flexRender(
                            header.column.columnDef.header,
                            header.getContext()
                          )}
                      <div
                        {...{
                          onDoubleClick: () => header.column.resetSize(),
                          onMouseDown: header.getResizeHandler(),
                          onTouchStart: header.getResizeHandler(),
                          className: `resizer ${
                            table.options.columnResizeDirection
                          } ${
                            header.column.getIsResizing() ? 'isResizing' : ''
                          }`,
                          style: {
                            transform:
                              columnResizeMode === 'onEnd' &&
                              header.column.getIsResizing()
                                ? `translateX(${
                                    (table.options.columnResizeDirection ===
                                    'rtl'
                                      ? -1
                                      : 1) *
                                    (table.getState().columnSizingInfo
                                      .deltaOffset ?? 0)
                                  }px)`
                                : '',
                          },
                        }}
                      />
                    </div>
                  ))}
                </div>
              ))}
            </div>
            <div
              {...{
                className: 'tbody',
              }}
            >
              {table.getRowModel().rows.map(row => (
                <div
                  {...{
                    key: row.id,
                    className: 'tr',
                  }}
                >
                  {row.getVisibleCells().map(cell => (
                    <div
                      {...{
                        key: cell.id,
                        className: 'td',
                        style: {
                          width: cell.column.getSize(),
                        },
                      }}
                    >
                      {flexRender(
                        cell.column.columnDef.cell,
                        cell.getContext()
                      )}
                    </div>
                  ))}
                </div>
              ))}
            </div>
          </div>
        </div>
        <div className="h-4" />
        <div className="text-xl">{'<div/> (absolute positioning)'}</div>
        <div className="overflow-x-auto">
          <div
            {...{
              className: 'divTable',
              style: {
                width: table.getTotalSize(),
              },
            }}
          >
            <div className="thead">
              {table.getHeaderGroups().map(headerGroup => (
                <div
                  {...{
                    key: headerGroup.id,
                    className: 'tr',
                    style: {
                      position: 'relative',
                    },
                  }}
                >
                  {headerGroup.headers.map(header => (
                    <div
                      {...{
                        key: header.id,
                        className: 'th',
                        style: {
                          position: 'absolute',
                          left: header.getStart(),
                          width: header.getSize(),
                        },
                      }}
                    >
                      {header.isPlaceholder
                        ? null
                        : flexRender(
                            header.column.columnDef.header,
                            header.getContext()
                          )}
                      <div
                        {...{
                          onDoubleClick: () => header.column.resetSize(),
                          onMouseDown: header.getResizeHandler(),
                          onTouchStart: header.getResizeHandler(),
                          className: `resizer ${
                            table.options.columnResizeDirection
                          } ${
                            header.column.getIsResizing() ? 'isResizing' : ''
                          }`,
                          style: {
                            transform:
                              columnResizeMode === 'onEnd' &&
                              header.column.getIsResizing()
                                ? `translateX(${
                                    (table.options.columnResizeDirection ===
                                    'rtl'
                                      ? -1
                                      : 1) *
                                    (table.getState().columnSizingInfo
                                      .deltaOffset ?? 0)
                                  }px)`
                                : '',
                          },
                        }}
                      />
                    </div>
                  ))}
                </div>
              ))}
            </div>
            <div
              {...{
                className: 'tbody',
              }}
            >
              {table.getRowModel().rows.map(row => (
                <div
                  {...{
                    key: row.id,
                    className: 'tr',
                    style: {
                      position: 'relative',
                    },
                  }}
                >
                  {row.getVisibleCells().map(cell => (
                    <div
                      {...{
                        key: cell.id,
                        className: 'td',
                        style: {
                          position: 'absolute',
                          left: cell.column.getStart(),
                          width: cell.column.getSize(),
                        },
                      }}
                    >
                      {flexRender(
                        cell.column.columnDef.cell,
                        cell.getContext()
                      )}
                    </div>
                  ))}
                </div>
              ))}
            </div>
          </div>
        </div>
      </div>
      <div className="h-4" />
      <button onClick={() => rerender()} className="border p-2">
        Rerender
      </button>
      <pre>
        {JSON.stringify(
          {
            columnSizing: table.getState().columnSizing,
            columnSizingInfo: table.getState().columnSizingInfo,
          },
          null,
          2
        )}
      </pre>
    </div>
  )
}

const rootElement = document.getElementById('root')
if (!rootElement) throw new Error('Failed to find the root element')

ReactDOM.createRoot(rootElement).render(
  <React.StrictMode>
    <App />
  </React.StrictMode>
)
import React from 'react'
import ReactDOM from 'react-dom/client'

import './index.css'

import {
  useReactTable,
  ColumnResizeMode,
  getCoreRowModel,
  ColumnDef,
  flexRender,
  ColumnResizeDirection,
} from '@tanstack/react-table'

type Person = {
  firstName: string
  lastName: string
  age: number
  visits: number
  status: string
  progress: number
}

const defaultData: Person[] = [
  {
    firstName: 'tanner',
    lastName: 'linsley',
    age: 24,
    visits: 100,
    status: 'In Relationship',
    progress: 50,
  },
  {
    firstName: 'tandy',
    lastName: 'miller',
    age: 40,
    visits: 40,
    status: 'Single',
    progress: 80,
  },
  {
    firstName: 'joe',
    lastName: 'dirte',
    age: 45,
    visits: 20,
    status: 'Complicated',
    progress: 10,
  },
]

const defaultColumns: ColumnDef<Person>[] = [
  {
    header: 'Name',
    footer: props => props.column.id,
    columns: [
      {
        accessorKey: 'firstName',
        cell: info => info.getValue(),
        footer: props => props.column.id,
      },
      {
        accessorFn: row => row.lastName,
        id: 'lastName',
        cell: info => info.getValue(),
        header: () => <span>Last Name</span>,
        footer: props => props.column.id,
      },
    ],
  },
  {
    header: 'Info',
    footer: props => props.column.id,
    columns: [
      {
        accessorKey: 'age',
        header: () => 'Age',
        footer: props => props.column.id,
      },
      {
        header: 'More Info',
        columns: [
          {
            accessorKey: 'visits',
            header: () => <span>Visits</span>,
            footer: props => props.column.id,
          },
          {
            accessorKey: 'status',
            header: 'Status',
            footer: props => props.column.id,
          },
          {
            accessorKey: 'progress',
            header: 'Profile Progress',
            footer: props => props.column.id,
          },
        ],
      },
    ],
  },
]

function App() {
  const [data] = React.useState(() => [...defaultData])
  const [columns] = React.useState<typeof defaultColumns>(() => [
    ...defaultColumns,
  ])

  const [columnResizeMode, setColumnResizeMode] =
    React.useState<ColumnResizeMode>('onChange')

  const [columnResizeDirection, setColumnResizeDirection] =
    React.useState<ColumnResizeDirection>('ltr')

  const rerender = React.useReducer(() => ({}), {})[1]

  const table = useReactTable({
    data,
    columns,
    columnResizeMode,
    columnResizeDirection,
    getCoreRowModel: getCoreRowModel(),
    debugTable: true,
    debugHeaders: true,
    debugColumns: true,
  })

  return (
    <div className="p-2">
      <select
        value={columnResizeMode}
        onChange={e => setColumnResizeMode(e.target.value as ColumnResizeMode)}
        className="border p-2 border-black rounded"
      >
        <option value="onEnd">Resize: "onEnd"</option>
        <option value="onChange">Resize: "onChange"</option>
      </select>
      <select
        value={columnResizeDirection}
        onChange={e =>
          setColumnResizeDirection(e.target.value as ColumnResizeDirection)
        }
        className="border p-2 border-black rounded"
      >
        <option value="ltr">Resize Direction: "ltr"</option>
        <option value="rtl">Resize Direction: "rtl"</option>
      </select>
      <div style={{ direction: table.options.columnResizeDirection }}>
        <div className="h-4" />
        <div className="text-xl">{'<table/>'}</div>
        <div className="overflow-x-auto">
          <table
            {...{
              style: {
                width: table.getCenterTotalSize(),
              },
            }}
          >
            <thead>
              {table.getHeaderGroups().map(headerGroup => (
                <tr key={headerGroup.id}>
                  {headerGroup.headers.map(header => (
                    <th
                      {...{
                        key: header.id,
                        colSpan: header.colSpan,
                        style: {
                          width: header.getSize(),
                        },
                      }}
                    >
                      {header.isPlaceholder
                        ? null
                        : flexRender(
                            header.column.columnDef.header,
                            header.getContext()
                          )}
                      <div
                        {...{
                          onDoubleClick: () => header.column.resetSize(),
                          onMouseDown: header.getResizeHandler(),
                          onTouchStart: header.getResizeHandler(),
                          className: `resizer ${
                            table.options.columnResizeDirection
                          } ${
                            header.column.getIsResizing() ? 'isResizing' : ''
                          }`,
                          style: {
                            transform:
                              columnResizeMode === 'onEnd' &&
                              header.column.getIsResizing()
                                ? `translateX(${
                                    (table.options.columnResizeDirection ===
                                    'rtl'
                                      ? -1
                                      : 1) *
                                    (table.getState().columnSizingInfo
                                      .deltaOffset ?? 0)
                                  }px)`
                                : '',
                          },
                        }}
                      />
                    </th>
                  ))}
                </tr>
              ))}
            </thead>
            <tbody>
              {table.getRowModel().rows.map(row => (
                <tr key={row.id}>
                  {row.getVisibleCells().map(cell => (
                    <td
                      {...{
                        key: cell.id,
                        style: {
                          width: cell.column.getSize(),
                        },
                      }}
                    >
                      {flexRender(
                        cell.column.columnDef.cell,
                        cell.getContext()
                      )}
                    </td>
                  ))}
                </tr>
              ))}
            </tbody>
          </table>
        </div>
        <div className="h-4" />
        <div className="text-xl">{'<div/> (relative)'}</div>
        <div className="overflow-x-auto">
          <div
            {...{
              className: 'divTable',
              style: {
                width: table.getTotalSize(),
              },
            }}
          >
            <div className="thead">
              {table.getHeaderGroups().map(headerGroup => (
                <div
                  {...{
                    key: headerGroup.id,
                    className: 'tr',
                  }}
                >
                  {headerGroup.headers.map(header => (
                    <div
                      {...{
                        key: header.id,
                        className: 'th',
                        style: {
                          width: header.getSize(),
                        },
                      }}
                    >
                      {header.isPlaceholder
                        ? null
                        : flexRender(
                            header.column.columnDef.header,
                            header.getContext()
                          )}
                      <div
                        {...{
                          onDoubleClick: () => header.column.resetSize(),
                          onMouseDown: header.getResizeHandler(),
                          onTouchStart: header.getResizeHandler(),
                          className: `resizer ${
                            table.options.columnResizeDirection
                          } ${
                            header.column.getIsResizing() ? 'isResizing' : ''
                          }`,
                          style: {
                            transform:
                              columnResizeMode === 'onEnd' &&
                              header.column.getIsResizing()
                                ? `translateX(${
                                    (table.options.columnResizeDirection ===
                                    'rtl'
                                      ? -1
                                      : 1) *
                                    (table.getState().columnSizingInfo
                                      .deltaOffset ?? 0)
                                  }px)`
                                : '',
                          },
                        }}
                      />
                    </div>
                  ))}
                </div>
              ))}
            </div>
            <div
              {...{
                className: 'tbody',
              }}
            >
              {table.getRowModel().rows.map(row => (
                <div
                  {...{
                    key: row.id,
                    className: 'tr',
                  }}
                >
                  {row.getVisibleCells().map(cell => (
                    <div
                      {...{
                        key: cell.id,
                        className: 'td',
                        style: {
                          width: cell.column.getSize(),
                        },
                      }}
                    >
                      {flexRender(
                        cell.column.columnDef.cell,
                        cell.getContext()
                      )}
                    </div>
                  ))}
                </div>
              ))}
            </div>
          </div>
        </div>
        <div className="h-4" />
        <div className="text-xl">{'<div/> (absolute positioning)'}</div>
        <div className="overflow-x-auto">
          <div
            {...{
              className: 'divTable',
              style: {
                width: table.getTotalSize(),
              },
            }}
          >
            <div className="thead">
              {table.getHeaderGroups().map(headerGroup => (
                <div
                  {...{
                    key: headerGroup.id,
                    className: 'tr',
                    style: {
                      position: 'relative',
                    },
                  }}
                >
                  {headerGroup.headers.map(header => (
                    <div
                      {...{
                        key: header.id,
                        className: 'th',
                        style: {
                          position: 'absolute',
                          left: header.getStart(),
                          width: header.getSize(),
                        },
                      }}
                    >
                      {header.isPlaceholder
                        ? null
                        : flexRender(
                            header.column.columnDef.header,
                            header.getContext()
                          )}
                      <div
                        {...{
                          onDoubleClick: () => header.column.resetSize(),
                          onMouseDown: header.getResizeHandler(),
                          onTouchStart: header.getResizeHandler(),
                          className: `resizer ${
                            table.options.columnResizeDirection
                          } ${
                            header.column.getIsResizing() ? 'isResizing' : ''
                          }`,
                          style: {
                            transform:
                              columnResizeMode === 'onEnd' &&
                              header.column.getIsResizing()
                                ? `translateX(${
                                    (table.options.columnResizeDirection ===
                                    'rtl'
                                      ? -1
                                      : 1) *
                                    (table.getState().columnSizingInfo
                                      .deltaOffset ?? 0)
                                  }px)`
                                : '',
                          },
                        }}
                      />
                    </div>
                  ))}
                </div>
              ))}
            </div>
            <div
              {...{
                className: 'tbody',
              }}
            >
              {table.getRowModel().rows.map(row => (
                <div
                  {...{
                    key: row.id,
                    className: 'tr',
                    style: {
                      position: 'relative',
                    },
                  }}
                >
                  {row.getVisibleCells().map(cell => (
                    <div
                      {...{
                        key: cell.id,
                        className: 'td',
                        style: {
                          position: 'absolute',
                          left: cell.column.getStart(),
                          width: cell.column.getSize(),
                        },
                      }}
                    >
                      {flexRender(
                        cell.column.columnDef.cell,
                        cell.getContext()
                      )}
                    </div>
                  ))}
                </div>
              ))}
            </div>
          </div>
        </div>
      </div>
      <div className="h-4" />
      <button onClick={() => rerender()} className="border p-2">
        Rerender
      </button>
      <pre>
        {JSON.stringify(
          {
            columnSizing: table.getState().columnSizing,
            columnSizingInfo: table.getState().columnSizingInfo,
          },
          null,
          2
        )}
      </pre>
    </div>
  )
}

const rootElement = document.getElementById('root')
if (!rootElement) throw new Error('Failed to find the root element')

ReactDOM.createRoot(rootElement).render(
  <React.StrictMode>
    <App />
  </React.StrictMode>
)
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