using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

namespace SMS.Web
{
    public partial class Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

            if (!Page.IsPostBack)
            {
                CreateGroupNode(new SMS.BLL.Group());

                CreateWordMenu(new SMS.BLL.Word());
            }
        }

        private void CreateWordMenu(SMS.BLL.Word obj)
        {
            DataTable dt = new DataTable();   
            dt = obj.GetAllList().Tables[0];  
            foreach (DataRow row in dt.Rows)
            {
                CreateMenuItem(row);
            }
        }
        private void CreateGroupNode(SMS.BLL.Group obj)
        {
            DataTable dt = new DataTable();
            dt = obj.GetAllList().Tables[0];

            foreach (DataRow row in dt.Rows)
            {
                CreateOneGroupNode(row);
            }

        }

        private void CreateMenuItem(DataRow row)
        {
            MenuItem mnu = new MenuItem();
            mnu.Text = row["title"].ToString();
            mnu.Value = row["content"].ToString();
            mnuWord.Items.Add(mnu);
        }



        private void CreateOneGroupNode(DataRow row)
        {
            TreeNode node = new TreeNode();
            node.Text = row["GroupName"].ToString();
            TreeView1.Nodes.Add(node);
        }
protected void btnAddGroup_Click(object sender, EventArgs e)
        {
            TreeNode node = new TreeNode();
            node.Text = txtGroupName.Text.Trim();
            TreeView1.Nodes.Add(node);

            SMS.BLL.Group myGroup = new SMS.BLL.Group();
            SMS.Model.Group myModel = new SMS.Model.Group();
            myModel.GroupName = txtGroupName.Text.Trim();
            myGroup.Add(myModel);

        }



        protected void btnAddFriend_Click(object sender, EventArgs e)
        {

            if (IsRootNode(TreeView1.SelectedNode))
                CreateFriendNode();
        }

        private void CreateFriendNode()
        {
            string name = txtName.Text.Trim();
            string phone = txtPhone.Text.Trim();
            TreeNode selectedNode = TreeView1.SelectedNode;

            AddSubNodeToRoot(selectedNode, name, phone);

            SaveSubNodeInfo(selectedNode, name, phone);
        }

        private static void SaveSubNodeInfo(TreeNode selectedNode, string name, string phone)
        {
            SMS.BLL.Friend myFriend = new SMS.BLL.Friend();
            SMS.Model.Friend myModel = new SMS.Model.Friend();

            myModel.GroupName = selectedNode.Text;
            myModel.Name = name;
            myModel.Phone = phone;

            myFriend.Add(myModel);
        }

        private static void AddSubNodeToRoot(TreeNode selectedNode, string name, string phone)
        {
            TreeNode node = new TreeNode();
            node.Text = name;
            node.Value = phone;
            selectedNode.ChildNodes.Add(node);
        }

        private bool IsSubNode(TreeNode selectedNode)
        {
            return GetNodeType(selectedNode, 1);
        }

        private bool IsRootNode(TreeNode selectedNode)
        {
            return GetNodeType(selectedNode, 0);
        }

        private bool GetNodeType(TreeNode selectedNode, int depth)
        {
            if (selectedNode != null)
                if (TreeView1.SelectedNode.Depth == depth)
                {
                    return true;
                }

            return false;
        }

不全的三层，动态创建TREEVIEW，操作TREEVIEW

我只发了一部分  前面的先弄懂  请朋友们帮帮忙！

你运行下,看下有什么效果!!
动态生成Menu菜单 有增加,保存方法

[ 本帖最后由 闻启学 于 2009-12-31 10:20 编辑 ]

使用Visual 的好处就是可以逐语句调试，一些代码可以运行时逐语句调试一下就可以研究出作用了。