Gets or sets whether the ToggleButton is checked.
Assembly: PresentationFramework (in PresentationFramework.dll)
[<TypeConverterAttribute(typeof(NullableBoolConverter))>] [<LocalizabilityAttribute(LocalizationCategory.None, Readability = Readability.Unreadable)>] member IsChecked : Nullable<bool> with get, set
A control that inherits from ToggleButton determines its behavior when this property is null.
State of the CheckBox
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).
Available since 3.0
Available since 2.0
Windows Phone Silverlight
Available since 7.0