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TreeView.AfterSelect Event

Occurs after the tree node is selected.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)
public event TreeViewEventHandler AfterSelect

This event does not occur when the node is unselected. To detect whether the selection was cleared, you can test the TreeNode.IsSelected property.

For more information about handling events, see Consuming Events.

The following code example demonstrates how to use the TreeViewAction enumeration. To run this example, paste the following code in a form that contains a TreeView control named TreeView1. This example requires that TreeView1 is populated with items and the AfterSelect event is connected to the event handler defined in the sample.


	// Handle the After_Select event.
	private void TreeView1_AfterSelect(System.Object sender, 
		System.Windows.Forms.TreeViewEventArgs e)
	{

		// Vary the response depending on which TreeViewAction
		// triggered the event. 
		switch((e.Action))
		{
			case TreeViewAction.ByKeyboard:
				MessageBox.Show("You like the keyboard!");
				break;
			case TreeViewAction.ByMouse:
				MessageBox.Show("You like the mouse!");
				break;
		}
	}



		The following class inherits from the Button class and overrides
		the OnMouseHover and OnMouseMove methods to give the button
		some special behavior. To use this example create a new form and copy paste this class in the same file, after the form class.  Add a button of
		type FunButton, defined in the code example, to the form. 


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, 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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