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TreeViewItem.OnMouseLeftButtonDown Method

Provides class handling for a MouseLeftButtonDown event.

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

protected override void OnMouseLeftButtonDown (
	MouseButtonEventArgs e
)
protected void OnMouseLeftButtonDown (
	MouseButtonEventArgs e
)
protected override function OnMouseLeftButtonDown (
	e : MouseButtonEventArgs
)
You cannot use methods in XAML.

Parameters

e

The event data.

This method sets Handled to true. If the mouse ClickCount is two, the value of the IsExpanded property switches to true or false, which causes the TreeViewItem to expand or collapse.

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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