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ToggleButton.IsChecked Property

Gets or sets whether the ToggleButton is checked.

Namespace: System.Windows.Controls.Primitives
Assembly: PresentationFramework (in presentationframework.dll)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

[TypeConverterAttribute(typeof(NullableBoolConverter))] 
[LocalizabilityAttribute(LocalizationCategory.None, Readability=Readability.Unreadable)] 
public Nullable<bool> IsChecked { get; set; }
/** @property */
public Nullable<boolean> get_IsChecked ()

/** @property */
public void set_IsChecked (Nullable<boolean> value)

public function get IsChecked () : Nullable<boolean>

public function set IsChecked (value : Nullable<boolean>)

<object IsSynchronizedWithCurrentItem="Boolean"/>- or -<object IsSynchronizedWithCurrentItem="{x:Null}"/>

Property Value

true if the ToggleButton is checked; false if the ToggleButton is unchecked; otherwise a null reference (Nothing in Visual Basic). The default is false.

Identifier Field

IsCheckedProperty

Metadata Flags

None

A control that inherits from ToggleButton determines its behavior when this property is a null reference (Nothing in Visual Basic).

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

a null reference (Nothing in Visual Basic)

If IsThreeState is false, you can still programmatically set this property to a null reference (Nothing in Visual Basic) 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 a null reference (Nothing in Visual Basic) on a RadioButton, the RadioButton is unchecked.

The following example creates a CheckBox set to an indeterminate state.

<CheckBox Name="checkBox1" IsThreeState="True" 
          IsChecked="{x:Null}">
  A CheckBox in an indeterminate state
</CheckBox>

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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