ExpandSubtree Method

TreeView.ExpandSubtree Method

Expands the specified TreeViewItem control and all its child TreeViewItem elements.

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

protected virtual bool ExpandSubtree(
	TreeViewItem container


Type: System.Windows.Controls.TreeViewItem
The TreeViewItem to expand.

Return Value

Type: System.Boolean
true if the specified TreeViewItem and all its child elements were expanded; otherwise, false.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

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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