求教：c# wpf treeView如何知道怎么选中了哪个子树？

Question

求教：c# wpf treeView如何知道怎么选中了哪个子树？在treeView添加了好几个lable,怎么知道须选中了哪个lable

Answer 1

用AfterSelect事件，参数e.Node,就是选择的树节点！

Answer 2

   private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            #region 判断用户
            if (this.treeView1.SelectedNode == null)
            {
                return;
            }
            else
            {
                if (treeView1.SelectedNode.Text == "人脸检测")
                {                    FaceCheckUserControl fcheck = new FaceCheckUserControl();
                    this.splitContainer1.Panel2.Controls.Clear();
                    this.splitContainer1.Panel2.Controls.Add(fcheck);
                }
                else if (treeView1.SelectedNode.Text == "人脸跟踪")
                {
                    FaceFollowingUserControl follow = new FaceFollowingUserControl();
                    this.splitContainer1.Panel2.Controls.Clear();
                    this.splitContainer1.Panel2.Controls.Add(follow);                }
                else if (treeView1.SelectedNode.Text == "质量判断")
                {
                    PhotosQualityUserControl quality = new PhotosQualityUserControl();
                    this.splitContainer1.Panel2.Controls.Clear();
                    this.splitContainer1.Panel2.Controls.Add(quality);                }
                else if (treeView1.SelectedNode.Text == "图片质量")
                {
                    JpegUserControl jpeg = new JpegUserControl();
                    this.splitContainer1.Panel2.Controls.Clear();
                    this.splitContainer1.Panel2.Controls.Add(jpeg);
                }
                else if (treeView1.SelectedNode.Text == "编码设置")
                {
                    CodingUserControl code = new CodingUserControl();
                    this.splitContainer1.Panel2.Controls.Clear();
                    this.splitContainer1.Panel2.Controls.Add(code);
                }
                else if(treeView1.SelectedNode .Text=="其他参数")
                {
                    ElseParametersUserControl elseUserControl = new ElseParametersUserControl();
                    this.splitContainer1.Panel2.Controls.Clear();
                    this.splitContainer1.Panel2.Controls.Add(elseUserControl);
                }
                return;            }            #endregion        }

Answer 3

晕 可惜wpf没有这个Afterselected方法