AfterExpand Event

Occurs after an UltraTreeNode is expanded.
Public Event AfterExpand As AfterNodeChangedEventHandler
public event AfterNodeChangedEventHandler AfterExpand
Event Data

The event handler receives an argument of type NodeEventArgs containing data related to this event. The following NodeEventArgs properties provide information specific to this event.

TreeNode The UltraTreeNode (read-only)

The NodeEventArgs.TreeNode property of the NodeEventArgs contains a reference to the the UltraTreeNode that was expanded.

The following sample code illustrates some of the information available in the AfterExpand event.

For an overview of how to handle events in Visual Basic or Visual C#, see Event Handlers in Visual Basic and Visual C#. For specific information and code examples illustrating how to consume events in your application, see Consuming Events in the .NET Framework Developer's Guide.

Private Sub ultraTree1_AfterExpand(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinTree.NodeEventArgs) Handles ultraTree1.AfterExpand

    Dim sb As New System.Text.StringBuilder()

    sb.Append("Node: ")
    sb.Append(" has been expanded.")


    ' Call BringIntoView passing 'true' for the 'includeChildNodes'
    ' parameter will bring the node and all of its child nodes
    ' into view

End Sub
private void ultraTree1_AfterExpand(object sender, Infragistics.Win.UltraWinTree.NodeEventArgs e)

	System.Text.StringBuilder sb = new System.Text.StringBuilder();

	sb.Append("Node: ");
	sb.Append(" has been expanded.");

	Debug.WriteLine( sb.ToString() );

	// Call BringIntoView passing 'true' for the 'includeChildNodes'
	// parameter will bring the node and all of its child nodes
	// into view

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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

See Also