C#中treeview 鼠标右键节点选中问题

C#中treeview 鼠标右键节点选中问题解决办法

private void treeView1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
        ...{
            if (e.Button==MouseButtons.Right)
            ...{
                TreeNode tn = treeView1.GetNodeAt(e.X,e.Y);
                if (tn!=null)
                ...{
                    treeView1.SelectedNode=tn;
                }
            }
            

        }