hMailServer.Administrator.ucIMAPFolders.contextMenuStrip_Opening C# (CSharp) Method

        private void contextMenuStrip_Opening(object sender, CancelEventArgs e)
        {
            TreeNode selectedNode = treeFolders.SelectedNode;
             if (selectedNode == null)
             {
            createFolderToolStripMenuItem.Enabled = true;
            deleteFolderToolStripMenuItem.Enabled = false;
             }
             else
             {
            createFolderToolStripMenuItem.Enabled = true;
            deleteFolderToolStripMenuItem.Enabled = true;
             }
        }