Changing context menu dynamically

Hello Guys,

I’m trying to change context menu dynamically depending if the TreeView root is selected I want to use CMnuRoot menu else I want to use CMnuChild menu.
But I’m getting an error: “Object instance is not set to an instance of the object” .

Code:

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Private Sub TreeView1_MouseDown1(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles TreeView1.MouseDown
             
 If e.Button = MouseButtons.Right and TreeView1.SelectedNode.Parent Is Nothing Then
                Me.CMnuRoot.Show(Me.TreeView1, New Point(e.X, e.Y))
            Else
                Me.CMnuChild.Show(Me.TreeView1, New Point(e.X, e.Y))
        End If
    End Sub

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Please help. :confused:

That error is usually pretty easy to figure out, but what line of code generates that error? If you're stepping through your code, you can mouse over your objects and the tool tip will tell you that it set to nothing.