winForm TreeView控件

Question

请问，在AfterSelect事件中，选中当前节点时，要显示其父节点该怎么写？谢谢！

Answer 1

private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            MessageBox.Show(e.Node.Parent.Text.ToString());
        }

Answer 2

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            if (e.Node.Parent != null)
            {
                e.Node.Parent.Collapse();
            }
        }