vs 2005 treeview控件使用求教？

1。
数据来自数据库迈？2。
递归动态创建 TreeView 节点<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %><%--http://community.csdn.net/Expert/TopicView3.asp?id=5601936--%><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">
    void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack) {
            CreateCityTree();
        }
    }    void CreateCityTree()
    {
        DataTable dtCity = CreateCityTable();
        CreateCityTreeRecursive(dtCity, treeCity, null, 0);
    }    void CreateCityTreeRecursive(DataTable soure, TreeView tree, TreeNode parentNode, int parentId)
    {
        DataRow[] rows = soure.Select("ParentID=" + parentId.ToString());
        
        foreach(DataRow r in rows){
            TreeNode node = new TreeNode();
            node.Text = r["CityName"].ToString();
            node.NavigateUrl = "city.aspx?cityid=" + r["CityID"].ToString();
            if (tree != null) {
                tree.Nodes.Add(node);
            }
            else {
                parentNode.ChildNodes.Add(node);
            }
            CreateCityTreeRecursive(soure, null, node, (int)r["CityID"]);
        }
    }    #region sample data
    
    public static DataTable CreateCityTable()
    {
        DataTable tbl = new DataTable();
        tbl.TableName = "CityTable";
        tbl.Columns.Add("CityID", typeof(int));
        tbl.Columns.Add("CityName", typeof(string));
        tbl.Columns.Add("ParentID", typeof(int));
        DataRow row = tbl.NewRow();
        row[0] = 1;
        row[1] = "Chongqing";
        row[2] = 0;
        tbl.Rows.Add(row);        row = tbl.NewRow();
        row[0] = 2;
        row[1] = "Shapingba";
        row[2] = 1;
        tbl.Rows.Add(row);        row = tbl.NewRow();
        row[0] = 3;
        row[1] = "Yuzhongqu";
        row[2] = 1;
        tbl.Rows.Add(row);        row = tbl.NewRow();
        row[0] = 4;
        row[1] = "Sichuan";
        row[2] = 0;
        tbl.Rows.Add(row);        row = tbl.NewRow();
        row[0] = 5;
        row[1] = "Chengdu";
        row[2] = 4;
        tbl.Rows.Add(row);        return tbl;
    }    #endregion
</script><html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TreeView ID="treeCity" runat="server"></asp:TreeView>
        </div>
    </form>
</body>
</html>

解决方案 »

  1.   

    方法有很多！但不知道你的要是怎么样？？
    如楼上说，也是一种！数据从那里来！
    数据库SQL或者是XML的！
    SQL根据权限查询数据再绑定。
    网上baidu一下有很多这方面权限的问题！
      

  2.   

    我程序里：
    using System;
    using System.Collections;
    using System.Collections.Generic;
    using System.Text;
    using System.Web;
    using System.Web.UI.WebControls;
    using System.Web.UI;using BC.Engine.Steed.IDAL;
    using BC.Engine.Steed.DALFactory;
    using BC.Engine.Steed.Model.PlatForm;
    namespace BC.Engine.Steed.BLL.Controls
    {    public enum MenuType
        {
            AllMenu,
            NormalMenu
        };    public class SteedTreeView : System.Web.UI.WebControls.TreeView
        {
            private IFunctionList dal;
            private FunctionInfoCollection functionInfoCollection;        private MenuType functionMenuType;
            public MenuType FunctionMenuType
            {
                get
                {
                    return functionMenuType;
                }
                set
                {
                    functionMenuType = value;
                }
            }        public string CurrentUrl
            {
                get
                {
                    if (ViewState["CurrentUrl"] == null)
                        return "";
                    else
                        return ViewState["CurrentUrl"].ToString();
                }
                set
                {
                    ViewState["CurrentUrl"] = value;
                }
            }        public string UserId
            {
                get
                {
                    if (ViewState["UserId"] == null)
                        return "0";
                    else
                        return ViewState["UserId"].ToString();
                }
                set
                {
                    ViewState["UserId"] = value;
                }
            }        public FunctionInfo CurrentFunctionInfo
            {
                get
                {
                    dal = DataAccess.CreateFunctionList();
                    return dal.GetCurrentFunctionInfo(CurrentUrl);
                }
            }        public FunctionInfo RootFunctionInfo
            {
                get
                {
                    dal = DataAccess.CreateFunctionList();
                    return dal.GetCurrentRootFunctionInfo(CurrentUrl);
                }
            }        public string ViewOrder
            {
                get
                {
                    if (ViewState["ViewOrder"] == null)
                        return "";
                    else
                        return ViewState["ViewOrder"].ToString();
                }
                set
                {
                    ViewState["ViewOrder"] = value;
                }
            }        public int Depth
            {
                get
                {
                    if (ViewState["Depth"] == null)
                        return int.MaxValue;
                    else
                        return Convert.ToInt32(ViewState["Depth"]);
                }
                set
                {
                    ViewState["Depth"] = value;
                }
            }        public SteedTreeView()
                : base()
            {
                this.FunctionMenuType = MenuType.AllMenu;
            }
            protected override void OnInit(EventArgs e)
            {
                base.OnInit(e);
                dal = DataAccess.CreateFunctionList();
                this.CurrentUrl = HttpUtility.UrlDecode(this.Page.Request.Url.AbsolutePath);
            }        protected override void OnLoad(EventArgs e)
            {
                base.OnLoad(e);
                if (!Page.IsPostBack)
                {
                    DataBindTree();
                }
            }
            public void DataBindTree()
            {
                this.Nodes.Clear();
                if (this.functionMenuType == MenuType.AllMenu)
                {
                    BindFullFunctions();
                }
                if (this.functionMenuType == MenuType.NormalMenu)
                {
                    BindNormalFunctions();
                }
            }        void BindNormalFunctions()
            {
                BFunctionList functionList = new BFunctionList();
                functionInfoCollection = functionList.GetChildFuctionListByViewOrderExceptSelf(this.RootFunctionInfo.ViewOrder, this.UserId, Depth);            for (int i = 0; i < functionInfoCollection.Count; i++)
                {
                    if (this.RootFunctionInfo.ViewOrder.Length + 2 == functionInfoCollection[i].ViewOrder.Length && Depth >= functionInfoCollection[i].ViewOrder.Length)
                    {
                        TreeNode rootNote = new TreeNode(functionInfoCollection[i].Name,
                        functionInfoCollection[i].ID,
                        functionInfoCollection[i].FMBigIconFile);
                        rootNote.ToolTip = functionInfoCollection[i].ViewOrder;                    if (FunctionMenuType == MenuType.NormalMenu)
                            rootNote.NavigateUrl = functionInfoCollection[i].Url;                    this.Nodes.Add(rootNote);
                        BuildChildNode(rootNote);
                    }
                }
            }        public void SetSelectedNote(TreeNode node, string noteValue)
            {
                foreach (TreeNode childnode in node.ChildNodes)
                {
                    if (childnode.Value == noteValue)
                    {
                        childnode.Selected = true;
                        return;
                    }
                    else
                    {
                        SetSelectedNote(childnode, noteValue);
                    }
                }
            }        void BindFullFunctions()
            {
                functionInfoCollection = dal.GetFullFuctionList();
                TreeNode rootNote = new TreeNode(functionInfoCollection[0].Name,
                    functionInfoCollection[0].ID,
                    functionInfoCollection[0].FMBigIconFile);            rootNote.ToolTip = functionInfoCollection[0].ViewOrder;
                this.Nodes.Add(rootNote);
                BuildChildNode(rootNote);
            }        void BuildChildNode(TreeNode node)
            {
                for (int i = 0; i < functionInfoCollection.Count; i++)
                {
                    FunctionInfo var = functionInfoCollection[i];
                    if (node.ToolTip.Length + 2 == var.ViewOrder.Length &&
                        node.ToolTip == var.ViewOrder.Substring(0, node.ToolTip.Length))
                    {
                        TreeNode chlNode = new TreeNode(var.Name, var.ID, var.FMBigIconFile);
                        chlNode.ToolTip = var.ViewOrder;                    if (FunctionMenuType == MenuType.NormalMenu)
                            chlNode.NavigateUrl = var.Url;                    node.ChildNodes.Add(chlNode);
                        BuildChildNode(chlNode);
                    }
                }        }
        }}
      

  3.   

    BindNormalFunctions()
    functionInfoCollection = functionList.GetChildFuctionListByViewOrderExceptSelf(this.RootFunctionInfo.ViewOrder, this.UserId, Depth);这个方法，内部是返回　用户所有的　权限　菜单