# BooleanCell

Renders a quad-state checkbox.

```typescript
export interface BooleanCell extends BaseGridCell {
    readonly kind: GridCellKind.Boolean;
    readonly data: boolean | BooleanEmpty | BooleanIndeterminate;
    readonly readonly?: boolean;
    readonly allowOverlay: false;
    readonly maxSize?: number;
}
```

### data

Determines if the boolean cell is checked, unchecked, or empty.

### readonly

Determines if the cell will accept edit events.

### maxSize

Controls the maximum size the checkbox will become. So long as this is smaller that the cell size this will also represent the final size of the checkbox.