How can I display a context menu when the user right-clicks on a node in the TreeView control?

You can display a context menu when a user right-clicks on a node by listening to the TreeView’s MouseUp event as shown below:

[C#]
private void treeView1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{  
	if(e.Button == MouseButtons.Right)  
	{   
		Point ClickPoint = new Point(e.X,e.Y);   
		TreeNode ClickNode = treeView1.GetNodeAt(ClickPoint);   
		if(ClickNode == null) return;   
		// Convert from Tree coordinates to Screen coordinates    
		Point ScreenPoint = treeView1.PointToScreen(ClickPoint);   
		// Convert from Screen coordinates to Form coordinates    
		Point FormPoint = this.PointToClient(ScreenPoint);   
		// Show context menu   
		contextmenu.MenuItems.Clear();   
		contextmenu.MenuItems.Add('Item1');   
		contextmenu.MenuItems.Add('Item2');   
		contextmenu.Show(this,FormPoint);  
	} 
}

[VB.NET]
Private  Sub treeView1_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs)  
	If e.Button = MouseButtons.Right Then
		Dim ClickPoint As Point =  New Point(e.X,e.Y) 
		Dim ClickNode As TreeNode =  treeView1.GetNodeAt(ClickPoint) 
		If ClickNode Is Nothing Then
			 Return
		End If
		’ Convert from Tree coordinates to Screen coordinates    
		Dim ScreenPoint As Point =  treeView1.PointToScreen(ClickPoint) 
		’ Convert from Screen coordinates to Form coordinates    
		Dim FormPoint As Point =  Me.PointToClient(ScreenPoint) 
		’ Show context menu   
		contextmenu.MenuItems.Clear()   
		contextmenu.MenuItems.Add('Item1')   
		contextmenu.MenuItems.Add('Item2')   
		contextmenu.Show(this,FormPoint)
	End If
End Sub