private void treeView_DoubleClick(object sender, EventArgs e)
        {
            this.Cursor = System.Windows.Forms.Cursors.WaitCursor;

            TreeNodes.TreeNode treeNode = (TreeNodes.TreeNode) this.treeView.SelectedNode;
            if (treeNode != null)
            {
                treeNode.DoubleClick();
            }

            this.Cursor = System.Windows.Forms.Cursors.Default;
        }
        private void treeView_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == System.Windows.Forms.Keys.Enter)
            {
                this.Cursor = System.Windows.Forms.Cursors.WaitCursor;

                TreeNodes.TreeNode treeNode = (TreeNodes.TreeNode) this.treeView.SelectedNode;
                if (treeNode != null)
                {
                    treeNode.DoubleClick();
                }

                this.Cursor = System.Windows.Forms.Cursors.Default;
            }
        }