目录树加载并绑定右键点击事件

using System.Collections;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Windows.Forms;

namespace menuTreeWITHrightMouseClick
{
    public partial class Form1 : Form
    {
        string strRootFolderPath = @"D:\CODE";
        TreeNode rootNode;

        public Form1()
        {
            InitializeComponent();
            rootNode = new TreeNode(strRootFolderPath);
            BangdingTreeView(rootNode);
            this.tv_Folders.Nodes.Add(rootNode);
            this.tv_Folders.CollapseAll();
            int a = this.tv_Folders.GetNodeCount(true);
        }

        private void BangdingTreeView(TreeNode tr)
        {
            foreach (string strPath in Directory.GetDirectories(tr.Text))
            {
                TreeNode currentNode = new TreeNode(strPath);
                GetTreeNodesStatus(tv_Folders.Nodes);
                tr.Nodes.Add(currentNode);
                //更新TreeView函数
                SetTreeNodesStatus(tv_Folders.Nodes);
                if (Directory.GetDirectories(strPath).Count() > 0)
                {
                    BangdingTreeView(currentNode);
                }
            }
        }

        private Hashtable NodesStatus = new Hashtable();
        private string SelectNodeFullPath = string.Empty;

        private void GetTreeNodesStatus(TreeNodeCollection nodes)
        {
            foreach (TreeNode node in nodes)
            {
                if (node.IsExpanded)
                {
                    NodesStatus[node.FullPath] = true;
                }
                else
                {
                    NodesStatus.Remove(node.FullPath);
                }
                if (node.IsSelected)
                {
                    SelectNodeFullPath = node.FullPath;
                }
                GetTreeNodesStatus(node.Nodes);
            }
        }

        private void SetTreeNodesStatus(TreeNodeCollection nodes)
        {
            foreach (TreeNode node in nodes)
            {
                if (NodesStatus[node.FullPath] != null)
                {
                    node.Expand();
                }
                if (node.FullPath == SelectNodeFullPath)
                {
                    this.tv_Folders.SelectedNode = node;
                }
                SetTreeNodesStatus(node.Nodes);
            }
        }

        private void tv_Folders_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)//判断点击的是否是右键
            {
                Point ClickPoint = new Point(e.X, e.Y);//获取鼠标点击的坐标
                TreeNode CurrentNode = tv_Folders.GetNodeAt(ClickPoint);//在获取的坐标处找节点
                if (CurrentNode != null)//判断点击的位置有没有节点
                {
                    CurrentNode.ContextMenuStrip = ctm_rightClickMenus;//给当前获取到的节点属性绑定右键点击事件
                    string name = tv_Folders.SelectedNode.Text.ToString();//存储节点文本
                    tv_Folders.SelectedNode = CurrentNode;//把点击获取到的节点设置为选中状态
                }
            }
        }

        private void tv_Folders_AfterSelect(object sender, TreeViewEventArgs e)
        {

        }
    }
}