# React Data Grid Column Ordering & Visibility

> Let users reorder React Data Grid columns by drag-and-drop and hide or show columns through a column chooser.

Give users control over the layout: drag headers to reorder columns and toggle
columns on and off to focus on what matters. Both features are driven through
the headless table, so you can wire them into your own toolbar — as the column
chooser in this demo does.

## Column ordering & visibility

`columnOrder` makes headers draggable — drop one onto another to reorder
(dragging never crosses a pinning boundary); pass an array for an initial order.
`columnVisibility` enables hiding and showing columns through the headless table
(`column.toggleVisibility()`, `column.getIsVisible()`); pass an object like
`{ email: false }` to start with a column hidden. Opt a column out with
`movable: false` / `hideable: false`. This demo adds a column chooser built
entirely with the `toolbar` slot.

```html
import { CDataGrid } from '@coreui/react-data-grid'
import type { CDataGridSlotProps } from '@coreui/react-data-grid'
import { useMemo } from 'react'

const firstNames = ['Alice', 'Bob', 'Carol', 'Dave', 'Eve', 'Frank', 'Grace', 'Heidi', 'Ivan', 'Judy']
const lastNames = ['Smith', 'Jones', 'Brown', 'Taylor', 'Wilson', 'Davies', 'Evans', 'Thomas']
const roles = ['admin', 'editor', 'viewer']

// Column chooser built with the toolbar slot and the headless table
const ColumnChooser = ({ table }: CDataGridSlotProps) => (
  <div className="d-flex gap-3 mb-2">
    {table.getAllLeafColumns().map(column =>
      column.getCanHide() ?
(
        <label key={column.id} className="form-check form-check-inline m-0">
          <input
            type="checkbox"
            className="form-check-input me-1"
            checked={column.getIsVisible()}
            onChange={event => column.toggleVisibility(event.target.checked)}
          />
          {column.id}
        </label>
      ) :
null
    )}
  </div>
)

export const DataGridOrderVisibilityExample = () => {
  const items = useMemo(
    () =>
      Array.from({ length: 1000 }, (_, i) => {
        const name = `${firstNames[i % firstNames.length]} ${lastNames[i % lastNames.length]}`
        return {
          id: i + 1,
          name,
          email: `${name.toLowerCase().replace(' ', '.')}${i}@example.com`,
          role: roles[i % roles.length]
        }
      }),
    []
  )

  return (
    <CDataGrid
      columns={[
        // movable/hideable: false keeps the key column in place
        {
          key: 'id', label: '#', width: 90, movable: false, hideable: false
        },
        { key: 'name', label: 'Name' },
        { key: 'email', label: 'Email', style: { width: '30%' } },
        { key: 'role', label: 'Role', width: 110 }
      ]}
      items={items}
      itemKey={item => String(item.id)}
      columnOrder
      columnVisibility
      pagination={{ pageSize: 10 }}
      slots={{ toolbar: ColumnChooser }}
    />
  )
}
```

## Options

| Option | Type | Default | Description |
| --- | --- | --- | --- |
| `columnOrder` | `boolean \| string[]` | `false` | Drag-and-drop reordering; an array sets the initial order. Never crosses a pinning boundary. |
| `columnVisibility` | `boolean \| Record<string, boolean>` | `false` | Enables hiding/showing columns; an object sets the initial visibility. |
| `movable` (column) | `boolean` | `true` | Set `false` to exclude a column from reordering. |
| `hideable` (column) | `boolean` | `true` | Set `false` to prevent hiding a column. |

Reordering calls `onOrderChange` with the `columnOrder` state; toggling
visibility calls `onVisibilityChange` with the `columnVisibility` state. The
[column menu](https://coreui.io/data-grid/react/docs/columns/menu/) offers a keyboard-accessible Move left/right as an
alternative to drag-and-drop.
