Expander.IsExpanded Property

Gets or sets whether the Expander content window is visible.

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

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

Property Value

Type: System.Boolean
true if the content window is expanded; otherwise, false. The default is false.

The following example shows how to set the IsExpanded property.


myExpanderIsExpanded.IsExpanded = true;



<Expander Name ="myExpanderIsExpanded" IsExpanded="True"  
          Header ="expanderTitle" Content="expanderContent"/>


.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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