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DataGridCheckBoxColumn.IsThreeState Property

Gets or sets a value that indicates whether the hosted CheckBox controls enable three states or two.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

'Declaration
Public Property IsThreeState As Boolean
<object IsThreeState="bool" .../>

Property Value

Type: System.Boolean
true if the hosted controls support three states; false if they support two states. The default is false.

The DataGridCheckBoxColumn.IsThreeState property lets you use a nullable Boolean as the data type and has the same functionality as the ToggleButton.IsThreeState property on CheckBox.

The three states for the ToggleButton.IsChecked property of the CheckBox control are true, false, and Nothing.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4
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