再问C#中treeview的问题

[jinsfree]

怎么样在右键某节点的时候首先选中该节点？？
谢谢！！

[3tzjq]

private void tvw_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
TreeNode node = tvw.GetNodeAt(tvw.PointToClient(tvw.MousePosition));
if (!(node == null)) {
tvw.SelectedNode = node;
}
}