# Required Props

```typescript
interface DataEditorProps {
    
    // ... other props

    columns: readonly GridColumn[];
    getCellContent: ((cell) => GridCell);
    rows: number;
    
    // ... other props
}
```

***

### columns

```ts
columns: readonly GridColumn[];
```

`columns` is an array of objects of type `GridColumn` describing the column headers. The length of the array is the number of columns to display. 

> 💡 This value should be memoized so as to avoid extraneous rerendering.

***

### rows

```ts
rows: number;
```

`rows` is the number of rows to display.

***

### getCellContent

```ts
getCellContent: (cell: Item) => GridCell;
```

`getCellContent` returns an object of type `GridCell` describing the contents for the cell at the given coordinates.

> 💡 This value should be memoized so as to avoid extraneous rerendering. This is usually done using `React.useCallback`. Failure to ensure proper memoization will result in slow path rendering at all times.


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