ToggleButton.IsChecked Property
Gets or sets whether the ToggleButton is checked. This is a dependency property.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
[TypeConverterAttribute(typeof(NullableBoolConverter))] [LocalizabilityAttribute(LocalizationCategory.None, Readability = Readability.Unreadable)] public Nullable<bool> IsChecked { get; set; }
<object IsChecked="Boolean"/>- or -<object IsChecked="{x:Null Markup Extension}"/>
Property Value
Type: System.Nullable<Boolean>true if the ToggleButton is checked; false if the ToggleButton is unchecked; otherwise null. The default is false.
A control that inherits from ToggleButton determines its behavior when this property is null.
CheckBox
When the IsThreeState property is set to true, a user can click a CheckBox to pick three possible states. The following table describes the three states of a CheckBox.
State of the CheckBox | Value of IsChecked |
|---|---|
Checked | true |
Unchecked | false |
Indeterminate | null |
If IsThreeState is false, you can still programmatically set this property to null to put the CheckBox in an indeterminate state, but the user cannot set the CheckBox to the indeterminate state through the user interface (UI).
RadioButton
If you set this property to null on a RadioButton, the RadioButton is unchecked.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.