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Expander.IsExpanded Property

Gets or sets whether the Expander content window is visible. This is a dependency property.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

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"/>

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.

.NET Framework

Supported in: 3.5, 3.0