AfterCollapse Event

Occurs after an UltraTreeNode is collapsed.

Syntax

Visual Basic

'Declaration
 
Public Event AfterCollapse As AfterNodeChangedEventHandler

C#

public event AfterNodeChangedEventHandler AfterCollapse

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.

Property	Description
TreeNode	The UltraTreeNode (read-only)

Remarks

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

Example

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

Visual Basic

Private Sub ultraTree1_AfterCollapse(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinTree.NodeEventArgs) Handles ultraTree1.AfterCollapse

    Dim sb As New System.Text.StringBuilder()

    sb.Append("Node: ")
    sb.Append(e.TreeNode.Key)
    sb.Append(" has been collapsed.")

    Debug.WriteLine(sb.ToString())

End Sub

C#

private void ultraTree1_AfterCollapse(object sender, Infragistics.Win.UltraWinTree.NodeEventArgs e)
{

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

	sb.Append("Node: ");
	sb.Append(e.TreeNode.Key);
	sb.Append(" has been collapsed.");

	Debug.WriteLine( sb.ToString() );
		
}

Requirements

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