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# isSelectionByRect

A Boolean that indicates whether the user can select a rectangle of cells in the receiver by dragging the cursor.

```
var isSelectionByRect: Bool { get set }
```

## Discussion

When the value of this property is <doc://com.apple.documentation/documentation/Swift/true>, the matrix allows the user to select a rectangle of cells by dragging. When the value of this property is <doc://com.apple.documentation/documentation/Swift/false>, selection in the matrix is on a row-by-row basis. The default value of this property is <doc://com.apple.documentation/documentation/Swift/true>.

## See Also

[`setSelectionFrom(_:to:anchor:highlight:)`](/documentation/AppKit/NSMatrix/setSelectionFrom(_:to:anchor:highlight:))

Programmatically selects a range of cells.


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