# Grid.CellPosition

Logical coordinates stored with each registered Grid cell.

## Signatures

```ts
export interface CellPosition {
    readonly rowId: string;
    readonly columnIndex: number;
}
```

## Property: columnIndex

Caller-supplied column index used for movement and emitted unchanged as aria-colindex; ARIA
indexes are one-based.

## Property: rowId

Stable logical row identity used by vertical grid movement.