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IsThreeState Property
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ToggleButton.IsThreeState Property

Determines whether the control supports two or three states.

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

[BindableAttribute(true)]
public bool IsThreeState { get; set; }
<object IsThreeState="bool" .../>

Property Value

Type: System.Boolean
true if the control supports three states; otherwise, false. The default is false.

Identifier field

IsThreeStateProperty

Metadata properties set to true

None

The IsChecked property can be set to null as a third state when IsThreeState is true.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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