BeforeDelete event is not being raised on UltraTree control when nodes are deleted. Is this a bug, am I doing something wrong or misunderstanding what this event represents?

To reproduce, place an UltraTree control and a button onto a new Form in a new Windows Forms project. Replace the designer code with this below. Press the button to delete a node and notice that the MessageBox does not appear. Am I missing a setting or something for this event to be enabled or is this a bug?

public partial class Form1 : Form

{

public

Form1()

{

InitializeComponent();

this.ultraTree1.BeforeDelete += new Infragistics.Win.UltraWinTree.BeforeNodeDeleteChangedEventHandler

(ultraTree1_BeforeDelete);

UltraTreeNode node = this

.ultraTree1.Nodes.Add();

node.Text =

"Parent";

node.Nodes.Add(

"c1", "Child1");

node.Nodes.Add("c2", "Child2");

}

void ultraTree1_BeforeDelete(object sender, Infragistics.Win.UltraWinTree.BeforeNodesDeletedEventArgs

e)

{

MessageBox.Show(string.Format("Deleting {0}", e.Nodes.Length.ToString()));

private void button1_Click(object sender, EventArgs e)

{

ultraTree1.Nodes[0].Nodes.RemoveAt(0);

}