TreeView的用法总结

1、循环往treeview中添加数据

public AuthorNavUserControl()
        {
            InitializeComponent();
            LoadTrees(MainForm.ProjectId,treeView1.Nodes);

        }

        private void LoadTrees(Guid guid, TreeNodeCollection treeNodeCollection)
        {
            List<IetmProject> ietmProjectlist = new List<IetmProject>();
            IIetmProjectService itemProjectService = new IetmProjectService();
            ietmProjectlist = itemProjectService.GetIetmProjectId(guid);

            if (ietmProjectlist != null)
            {
                foreach (IetmProject item in ietmProjectlist)
                {
                    TreeNode node = treeNodeCollection.Add(item.MICName);
                    node.Tag = item.ObjectId;
                    LoadTrees((Guid)item.ObjectId, node.Nodes);
                }
            }
        }

2、右击节点弹出“显示”菜单，点击“显示”后弹出该节点的id值

private void treeView1_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                Point ClickPoint = new Point(e.X, e.Y);
                TreeNode CurrentNode = treeView1.GetNodeAt(ClickPoint);
                if (CurrentNode is TreeNode)//判断点的是不是一个节点
                {
                    treeView1.SelectedNode = CurrentNode;
                    CurrentNode.ContextMenuStrip = this.contextMenuStrip1;
                    contextMenuStrip1.Show(MousePosition);
                }
            }
        }

        private void 显示ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            MessageBox.Show(treeView1.SelectedNode.Tag.ToString());
        }