[RESOLVED] [2005] Cancel Contextmenu in Treeview

[campster]

I only want to dispaly a context menu in the treeview if a node is selected.
This is what I'm trying but it doesn't seem to work. The menu apprears if I right click in the treeview whether I'm on a node or not and will not go away until l click somewhere else.

Private Sub tvwCharts_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles tvwCharts.MouseDown
        If e.Button = Windows.Forms.MouseButtons.Right Then
            Me.ContextMenuStrip1.Tag = tvwCharts.GetNodeAt(e.Location)
            If ContextMenuStrip1.Tag Is Nothing Then
                ContextMenuStrip1.Visible = False
            End If
        End If
    End Sub