FineUI开源版之TreeGrid实现

FineUI开源版是没有树表格的，但是又需要，怎么办呢？在博客园看到一位大大的文章

http://www.cnblogs.com/shiworkyue/p/4211002.html

然后参考，不知道为什么这位大大的代码我运行不了，有问题，然后自己修改了下，逻辑什么的各位可以前往这个大大的博客看，下面放上代码

FineUI的Grid.cs代码

添加的代码

 #region hzh modify
        /// <summary>
        /// 是否启用树(扩展)
        /// </summary>
        [Category(CategoryName.OPTIONS)]
        [DefaultValue(null)]
        [Description("是否启用树(扩展)")]
        public bool EnableTree
        {
            get
            {
                object obj = FState["EnableTree"];
                return obj == null ? false : (bool)obj;
            }
            set
            {
                FState["EnableTree"] = value;
                if (value)
                {
                    EnableRowClickEvent = false;
                }
            }
        }

        /// <summary>
        /// 是否展开树(扩展)
        /// </summary>
        [Category(CategoryName.OPTIONS)]
        [DefaultValue(null)]
        [Description("是否展开树(扩展)")]
        public bool ExpandAll
        {
            get
            {
                object obj = FState["ExpandAll"];
                return obj == null ? true : (bool)obj;
            }
            set
            {
                FState["ExpandAll"] = value;
                if (value)
                {
                    EnableRowClickEvent = false;
                }
            }
        }
        /// <summary>
        /// 树节点列名(扩展)
        /// </summary>
        [Category(CategoryName.OPTIONS)]
        [DefaultValue(null)]
        [Description("树节点列名(扩展)")]
        public string TreeName
        {
            get
            {
                object obj = FState["TreeName"];
                return obj == null ? "" : (string)obj;
            }
            set
            {
                FState["TreeName"] = value;
            }
        }

        /// <summary>
        /// 主键ID(扩展)
        /// </summary>
        [Category(CategoryName.OPTIONS)]
        [DefaultValue(null)]
        [Description("主键ID(扩展)")]
        public string TreeDataIDField
        {
            get
            {
                object obj = FState["TreeDataIDField"];
                return obj == null ? "" : (string)obj;
            }
            set
            {
                FState["TreeDataIDField"] = value;
            }
        }
        /// <summary>
        /// 父节点列名(扩展)
        /// </summary>
        [Category(CategoryName.OPTIONS)]
        [DefaultValue(null)]
        [Description("父节点列名(扩展)")]
        public string TreeDataParentIDField
        {
            get
            {
                object obj = FState["TreeDataParentIDField"];
                return obj == null ? "" : (string)obj;
            }
            set
            {
                FState["TreeDataParentIDField"] = value;
            }
        }

        /// <summary>
        /// 得到当然行的层级(扩展)
        /// </summary>
        /// <param name="row">当前行</param>
        /// <param name="Rows">行数据集</param>
        /// <returns>层级</returns>
        private int GetLevelNub(GridRow row, GridRowCollection Rows)
        {
            int lub = 0;
            //ID所在列
            int IDindex = FindColumn(TreeDataIDField).ColumnIndex;
            //父ID所在列
            int ParentIDindex = FindColumn(TreeDataParentIDField).ColumnIndex;
            //如果过是第第一级就是0
            if (row.Values[ParentIDindex].ToString() == "" || row.Values[ParentIDindex].ToString() == "0")
            {
                return lub;
            }
            else
            {
                foreach (GridRow gr in Rows)
                {
                    //如果有父级
                    if (gr.Values[IDindex].ToString() == row.Values[ParentIDindex].ToString())
                    {
                        //层级加1
                        lub++;
                        //查看父级的父级
                        int nub = GetLevelNub(gr, Rows);
                        lub += nub == 0 ? 1 : nub;
                    }
                }
            }
            return lub;
        }


        private List<GridRow> InsertRowToList(List<GridRow> toList, List<GridRow> sourceRows, int idindex, int pridindex)
        {
            for (int i = toList.Count - 1; i >= 0; i--)
            {
                GridRow torow = toList[i];
                bool ismodify = false;
                if (sourceRows == null || sourceRows.Count <= 0)
                    return toList;
                for (int j = sourceRows.Count - 1; j >= 0; j--)
                {
                    GridRow baserow = sourceRows[j];
                    if (baserow.Values[pridindex].ToString() != "" && baserow.Values[pridindex].ToString() == torow.Values[idindex].ToString())
                    {
                        toList.Insert(i + 1, baserow);
                        sourceRows.RemoveAt(j);
                        ismodify = true;
                    }
                }
                if (sourceRows.Count <= 0)
                {
                    sourceRows.Clear();
                    sourceRows = null;
                    return toList;
                }
                if (ismodify == false)
                {
                    if (sourceRows.Count > 0)
                    {
                        foreach (GridRow item in sourceRows)
                        {
                            toList.Add(item);
                        }
                        sourceRows.Clear();
                        sourceRows = null;
                    }
                    return toList;
                }
            }
            return InsertRowToList(toList, sourceRows, idindex, pridindex);
        }

        /// <summary>
        /// 对rows进行重新排序(扩展)
        /// </summary>
        private void SortTreeRows()
        {
            List<GridRow> sourceRows = new List<GridRow>();
            foreach (GridRow row in Rows)
            {
                sourceRows.Add(row);
            }
            Rows.Clear();

            List<GridRow> toList = new List<GridRow>();

            int pidindex = FindColumn(TreeDataParentIDField).ColumnIndex;
            int idindex = FindColumn(TreeDataIDField).ColumnIndex;
            for (int i = sourceRows.Count - 1; i >= 0; i--)
            {
                GridRow row = sourceRows[i];
                if (row.Values[pidindex].ToString() == "" || row.Values[pidindex].ToString() == "0")
                {
                    toList.Insert(0, row);
                    sourceRows.RemoveAt(i);
                }
            }

            toList = InsertRowToList(toList, sourceRows, idindex, pidindex);
            toList.ForEach(p => Rows.Add(p));
            for (int i = 0; i < Rows.Count; i++)
            {
                Rows[i].RowIndex = i;
            }
            toList.Clear();
            toList = null;
        }

        /// <summary>
        /// 给树赋值(扩展)
        /// </summary>
        private void SetValueTree()
        {
            if (EnableTree)
            {
                foreach (GridRow row in Rows)
                {
                    //下级行数
                    string Nextindex = GetNextIndex(row, Rows);
                    //默认图标
                    Icon iconindex = FineUI.Icon.ControlBlankBlue;
                    // string iconname = "page.png";
                    //图片ID，点击用，绑定事件
                    string imgid = ClientID + "_tree_icon_" + row.RowIndex;
                    //父节点图标
                    if (Nextindex != "")
                    {
                        if (ExpandAll)
                        {
                            iconindex = FineUI.Icon.ControlRemoveBlue;
                            //设置展开行
                            RowCollapsed.Add(row.RowIndex.ToString());
                        }
                        else
                        {
                            iconindex = FineUI.Icon.ControlAddBlue;
                        }
                        // iconname = "folder.png";

                        //加入图标和ID，注意加过的就不加了
                        if (row.Values[FindColumn(TreeName).ColumnIndex].ToString().IndexOf(ClientID + "_tree_icon_") < 0)
                        {
                            row.Values[FindColumn(TreeName).ColumnIndex] = "<img id="" + imgid + "" src="" + IconHelper.GetResolvedIconUrl(iconindex) + "" width="16" height="16"  style="margin-top:-5px;margin-bottom:-2px;cursor: pointer"/>" + row.Values[1];
                        }
                    }
                }
            }
        }

        /// <summary>
        /// 得到下级行号
        /// </summary>
        /// <param name="row">本节点</param>
        /// <param name="Rows">集合</param>
        /// <returns>集合以,隔开</returns>
        private string GetNextIndex(GridRow row, GridRowCollection Rows)
        {
            string topindex = "";
            int pridindex = FindColumn(TreeDataParentIDField).ColumnIndex;
            int idindex = FindColumn(TreeDataIDField).ColumnIndex;
            foreach (GridRow gr in Rows)
            {
                //父ID等于本ID添加到集合
                if (gr.Values[pridindex].ToString() != "" && gr.Values[pridindex].ToString() == row.Values[idindex].ToString())
                {
                    topindex += topindex == "" ? gr.RowIndex.ToString() : "," + gr.RowIndex.ToString();
                }
            }
            return topindex;
        }

        /// <summary>
        /// 得到所有子类行号
        /// </summary>
        /// <param name="row">本节点</param>
        /// <param name="Rows">集合</param>
        /// <param name="strIndexs">集合以,隔开</param>
        /// <returns>集合以,隔开</returns>
        private void GetAllNextIndex(int rowindex, GridRowCollection Rows, ref string strIndexs)
        {
            string index = GetNextIndex(Rows[rowindex], Rows);
            if (string.IsNullOrEmpty(index.Trim()))
                return;
            strIndexs = string.IsNullOrEmpty(strIndexs) ? index : (strIndexs + "," + index);
            string[] indexs = index.Split(',');
            foreach (string item in indexs)
            {
                GetAllNextIndex(int.Parse(item), Rows, ref strIndexs);
            }
        }

        /// <summary>
        /// 点击事件只给有子集的点击事件(扩展）
        /// </summary>
        private void TreeClick()
        {
            StringBuilder sbx = new StringBuilder();
            foreach (GridRow row in Rows)
            {
                //有下级菜单才绑定事件
                string Nextindex = GetNextIndex(row, Rows);
                if (Nextindex != "")
                {
                    string imgid = ClientID + "_tree_icon_" + row.RowIndex;
                    sbx.Append("$('#" + imgid + "').click(function(){F.customEvent("GridTreeClick_" + row.RowIndex + "");});");
                }
            }
            PageContext.RegisterStartupScript(sbx.ToString());
        }

        //  private static string _moveindex;//移除的数据
        /// <summary>
        /// 移除的数据(扩展）
        /// </summary>   
        public List<string> MoveIndex
        {
            get
            {
                object obj = ViewState["MoveIndex"];
                return obj == null ? new List<string>() : obj as List<string>;
            }
            set
            {

                ViewState["MoveIndex"] = value;
            }
        }

        // private static List<string> _RowCollapsed;//展开集合
        /// <summary>
        /// 展开集合(扩展）
        /// </summary>   
        public List<string> RowCollapsed
        {
            get
            {
                object obj = ViewState["RowCollapsed"];
                return obj == null ? new List<string>() : obj as List<string>;
            }
            set
            {

                ViewState["RowCollapsed"] = value;
            }
        }

        /// <summary>
        /// 第一次显示数方法(扩展）
        /// </summary>
        private void ShowTree()
        {
            //初始化树
            if (EnableTree)
            {
                if (!ExpandAll)
                {
                    List<string> lstMove = new List<string>();
                    //循环行
                    foreach (GridRow row in Rows)
                    {
                        //得到层级
                        int lub = GetLevelNub(row, Rows);
                        if (lub != 0)
                        {
                            //子集删除
                            if (!lstMove.Contains(row.RowIndex.ToString()))
                                lstMove.Add(row.RowIndex.ToString());
                        }
                    }
                    //排序（重要） 从大到小排序,不排序会删除1后造成2变成1
                    lstMove.Sort(delegate(string str1, string str2) { return int.Parse(str2) - int.Parse(str1); });
                    if (MoveIndex == null || MoveIndex.Count == 0)
                        MoveIndex = lstMove;
                    string strMoveIndex = string.Empty;
                    foreach (string item in lstMove)
                    {
                        strMoveIndex += string.IsNullOrEmpty(strMoveIndex) ? item : ("," + item);
                    }

                    string js = string.Empty;
                    if (!string.IsNullOrEmpty(strMoveIndex))
                    {
                        //放入缓存记录已经消除的行

                        js = ""
                           + "var store =" + XID + ".getStore();"
                           + "var rows = [" + strMoveIndex + "];"
                           + "Ext.Array.each(rows, function (rowIndex, index) {"
                           + "    store.removeAt(rowIndex);"
                           + "});"
                            //刷新行号，（重要）
                           + XID + ".view.refresh();";

                    }
                    if (!string.IsNullOrEmpty(js))
                        PageContext.RegisterStartupScript(js);
                    //绑定树点击事件
                    TreeClick();
                }
                else
                {
                    List<string> _RowCollapsed = new List<string>();
                    //循环行
                    foreach (GridRow row in Rows)
                    {
                        //得到层级
                        if (!string.IsNullOrEmpty(GetNextIndex(row, Rows)))
                        {
                            if (!_RowCollapsed.Contains(row.RowIndex.ToString()))
                                _RowCollapsed.Add(row.RowIndex.ToString());
                        }
                    }
                    RowCollapsed = _RowCollapsed;
                    //绑定树点击事件
                    TreeClick();
                }
            }
        }

        /// <summary>
        /// 点击树事件(扩展）
        /// </summary>
        /// <param name="treenode">点击的节点（行号）</param>
        public void DoTreeClick(string treenode)
        {
            if (EnableTree)
            {
                StringBuilder sb = new StringBuilder();
                List<string> _MoveIndex = MoveIndex;
                List<string> _RowCollapsed = RowCollapsed;
                //集合
                if (_RowCollapsed == null)
                {
                    _RowCollapsed = new List<string>();
                }
                //每次点击更改集合，移出和新增
                if (_RowCollapsed.Contains(treenode))
                {
                    _RowCollapsed.Remove(treenode);
                    string strids = string.Empty;
                    GetAllNextIndex(int.Parse(treenode), Rows, ref strids);
                    if (!string.IsNullOrEmpty(strids.Trim()))
                    {
                        string[] ids = strids.Split(',');
                        foreach (string item in ids)
                        {
                            _RowCollapsed.Remove(item);
                            if (!_MoveIndex.Contains(item))
                                _MoveIndex.Add(item);
                        }
                    }
                }
                else
                {
                    if (!_RowCollapsed.Contains(treenode))
                        _RowCollapsed.Add(treenode);
                    string strids = GetNextIndex(Rows[int.Parse(treenode)], Rows);
                    if (!string.IsNullOrEmpty(strids.Trim()))
                    {
                        string[] ids = strids.Split(',');
                        foreach (string item in ids)
                        {
                            _MoveIndex.Remove(item);
                        }
                    }
                }

                int PIDindex = FindColumn(TreeDataParentIDField).ColumnIndex;
                int IDindex = FindColumn(TreeDataIDField).ColumnIndex;

                if (_MoveIndex.Count >= 2)
                {
                    _MoveIndex.Sort(delegate(string str1, string str2) { return int.Parse(str2 == "" ? "0" : str2) - int.Parse(str1 == "" ? "0" : str1); });
                }
                string strMoveIndex = string.Empty;
                foreach (string ss in _MoveIndex)
                {
                    strMoveIndex += strMoveIndex == "" ? ss : "," + ss;
                }

                RowCollapsed = _RowCollapsed;
                MoveIndex = _MoveIndex;

                if (strMoveIndex != null)
                {
                    string js = ""
                  + "var store =" + XID + ".getStore();"
                  + "var rows = [" + strMoveIndex + "];"
                  + "Ext.Array.each(rows, function (rowIndex, index) {"
                  + "    store.removeAt(rowIndex);"
                  + "});"
                        //刷新行号，（重要）
                  + XID + ".view.refresh();";

                    //string js = ""
                    //    + "var store =F('" + ClientID + "').getStore();"
                    //    + "var rows = [" + moveindex + "];"
                    //    + "Ext.Array.each(rows, function (rowIndex, index) {"
                    //    + "    store.removeAt(rowIndex);"
                    //    + "});"

                    //    + "F('" + ClientID + "').view.refresh();";

                    sb.Append("F('" + ClientID + "').f_loadData();");
                    sb.Append(js);

                }
               
                foreach (string item in RowCollapsed)
                {
                    string imgid = ClientID + "_tree_icon_" + item;
                    sb.Append( "$("#" + imgid + "").attr("src","" + IconHelper.GetResolvedIconUrl(FineUI.Icon.ControlRemoveBlue) + "");");
                }
               
                PageContext.RegisterStartupScript(sb.ToString());
                TreeClick();
            }


        }
        /// <summary>
        /// 循环子集(扩展）
        /// </summary>
        /// <param name="treeindex"></param>
        /// <param name="movelist"></param>
        private void DoNextTreeClick(string treeindex, ref List<string> movelist, bool Collapsed)
        {
            if (EnableTree)
            {
                StringBuilder sb = new StringBuilder();
                int PIDindex = FindColumn(TreeDataParentIDField).ColumnIndex;
                int IDindex = FindColumn(TreeDataIDField).ColumnIndex;
                //得到下一菜单
                string nextindex = GetNextIndex(Rows[Convert.ToInt32(treeindex)], Rows);
                if (nextindex != "")
                {
                    string[] s = nextindex.Split(',');
                    for (int i = 0; i < s.Length; i++)
                    {
                        GridRow dr = Rows[Convert.ToInt32(s[i])];
                        string rowindex = dr.RowIndex.ToString();
                        //展开
                        if (movelist.Contains(rowindex) && Collapsed)
                        {
                            movelist.Remove(rowindex);
                        }
                        //收起
                        if (!Collapsed && !movelist.Contains(rowindex))
                        {
                            movelist.Add(rowindex);
                        }
                        //展开子集在展开集合中则执行该子集的展开
                        if (Collapsed && RowCollapsed.Contains(rowindex))
                        {
                            DoNextTreeClick(rowindex, ref movelist, true);
                        }
                    }
                }
            }
        }
        #endregion

修改的代码（主要是修改AfterDataBind方法）

 private void AfterDataBind(int recordCount)
        {
            #region hzh modify
            if (EnableTree && !string.IsNullOrEmpty(TreeName) && !string.IsNullOrEmpty(TreeDataIDField) && !string.IsNullOrEmpty(TreeDataParentIDField))
            {
                SortTreeRows();
                SetValueTree();
                ShowTree();
            }
            #endregion
            if (!IsDatabasePaging)
            {
                // 如果不是数据库分页，则每次DataBind都要更新RecordCount的值
                // 数据库分页的话，RecordCount需要用户显式的赋值
                RecordCount = recordCount;
            }


            // 在所有行都绑定结束后，需要检查模拟树显示的列，并重新计算当前列的内容（在列内容前加上树分隔符）
            // 1.查找需要模拟树显示的列
            BaseField simulateTreeColumn = null;
            foreach (GridColumn gridColumn in AllColumns)
            {
                BaseField column = gridColumn as BaseField;
                if (column != null && !String.IsNullOrEmpty(column.DataSimulateTreeLevelField))
                {
                    simulateTreeColumn = column;
                    break;
                }
            }
            #region hzh modify
            if (EnableTree)
            {
                if (!string.IsNullOrEmpty(TreeName))
                {
                    simulateTreeColumn = FindColumn(TreeName) as BaseField;
                }
            }
            #endregion

            // 2.如果找到这样的列
            if (simulateTreeColumn != null)
            {
                List<SimulateTreeNode> silumateTree = new List<SimulateTreeNode>();

                // 存在需要模拟树显示的列
                for (int rowIndex = 0, rowCount = Rows.Count; rowIndex < rowCount; rowIndex++)
                {
                    GridRow row = Rows[rowIndex];
                    int level = 0;
                    #region hzh modify
                    if (EnableTree)
                    {
                        level = GetLevelNub(row, Rows) - 1;
                    }
                    else
                    {
                        object treeLevelObj = row.GetPropertyValue(simulateTreeColumn.DataSimulateTreeLevelField);
                        if (treeLevelObj != null && treeLevelObj != DBNull.Value)
                        {
                            level = Convert.ToInt32(treeLevelObj);
                        }
                    }
                    #endregion
                    object content = row.Values[simulateTreeColumn.ColumnIndex];

                    SimulateTreeNode node = new SimulateTreeNode();
                    node.Text = content.ToString();
                    node.Level = level;
                    node.HasLittleBrother = false;
                    node.ParentNode = null;
                    silumateTree.Add(node);
                }

                // 计算树
                SimulateTreeHeper treeHelper = new SimulateTreeHeper();
                treeHelper.ResolveSimulateTree(silumateTree, true);

                // 赋值
                for (int rowIndex = 0, rowCount = Rows.Count; rowIndex < rowCount; rowIndex++)
                {
                    Rows[rowIndex].Values[simulateTreeColumn.ColumnIndex] = silumateTree[rowIndex].Text;
                }
            }

        }

有标记“hzh modify”就是我修改和添加的

然后看一下测试页面的代码

页面代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TestPage.aspx.cs" Inherits="FineUI.Examples.TestPage" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <f:PageManager ID="PageManager1" runat="server"  OnCustomEvent="PageManager_CustomEvent"/>
    <f:Grid EnableCollapse="true" Width="800px" Height="400px" runat="server" DataKeyNames="Id,Name"
        ID="Grid1" EnableTree="true" TreeName="name" TreeDataIDField="id" TreeDataParentIDField="topID"
        ShowBorder="true" ShowHeader="true" Title="树表格" EnableRowClickEvent="false" ExpandAll="false">
        <Columns>
            <f:RowNumberField />
            <f:BoundField ColumnID="name" ExpandUnusedSpace="true" DataField="name" HeaderText="名称">
            </f:BoundField>
            <f:BoundField ColumnID="id" DataField="id" Width="50px" HeaderText="ID">
            </f:BoundField>
            <f:BoundField ColumnID="topID" DataField="topID" Width="50px" HeaderText="topID">
            </f:BoundField>
            <f:BoundField DataField="levelcode" Width="100px" HeaderText="层级编号">
            </f:BoundField>
            <f:BoundField ColumnID="levelnub" DataField="levelnub" Width="100px" HeaderText="层级数">
            </f:BoundField>
            <f:BoundField DataField="subitem" Width="100px" HeaderText="是否为子菜单">
            </f:BoundField>
            <f:BoundField DataField="url" Width="100px" HeaderText="地址">
            </f:BoundField>
        </Columns>
    </f:Grid>
    </form>
     <script src="./res/js/jquery.min.js"></script>
</body>
</html>

后台代码：

using System;
using System.Collections.Generic;

using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

namespace FineUI.Examples
{
    public partial class TestPage : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            DataTable dt = new DataTable();
            dt.Columns.Add("name", typeof(string));
            dt.Columns.Add("id", typeof(int));
            dt.Columns.Add("topID", typeof(string));
            dt.Columns.Add("levelcode", typeof(string));
            dt.Columns.Add("levelnub", typeof(int));
            dt.Columns.Add("subitem", typeof(bool));
            dt.Columns.Add("url", typeof(string));

            DataRow dr1 = dt.NewRow();
            dr1[0] = "首页";
            dr1[1] = 1;
            dr1[2] = 0;
            dr1[3] = "0001";
            dr1[4] =0;
            dr1[5] = false;
            dr1[6] = "adfsdfds";
            dt.Rows.Add(dr1);

            DataRow dr2 = dt.NewRow();
            dr2[0] = "测试页";
            dr2[1] = 2;
            dr2[2] = 0;
            dr2[3] = "0002";
            dr2[4] = 0;
            dr2[5] = false;
            dr2[6] = "adfsdfds";
            dt.Rows.Add(dr2);

            //====================

            DataRow dr11 = dt.NewRow();
            dr11[0] = "首页下级1";
            dr11[1] = 3;
            dr11[2] = 1;
            dr11[3] = "00010001";
            dr11[4] = 1;
            dr11[5] = true;
            dr11[6] = "adfsdfds";
            dt.Rows.Add(dr11);

            DataRow dr12 = dt.NewRow();
            dr12[0] = "首页下级2";
            dr12[1] = 4;
            dr12[2] = 1;
            dr12[3] = "00010002";
            dr12[4] = 1;
            dr12[5] = true;
            dr12[6] = "adfsdfds";
            dt.Rows.Add(dr12);

            DataRow dr13 = dt.NewRow();
            dr13[0] = "首页下级3";
            dr13[1] = 5;
            dr13[2] = 1;
            dt.Rows.Add(dr13);

            //========================

                     
            DataRow dr21 = dt.NewRow();
            dr21[0] = "测试页下级1";
            dr21[1] = 6;
            dr21[2] = 2;
            dr21[3] = "00020001";
            dr21[4] = 1;
            dr21[5] = true;
            dr21[6] = "adfsdfds";
            dt.Rows.Add(dr21);

            DataRow dr22 = dt.NewRow();
            dr22[0] = "测试页下级2";
            dr22[1] = 7;
            dr22[2] = 2;
            dr22[3] = "00020002";
            dr22[4] = 1;
            dr22[5] = true;
            dr22[6] = "adfsdfds";
            dt.Rows.Add(dr22);


            DataRow dr221 = dt.NewRow();
            dr221[0] = "测试页下下级1";
            dr221[1] = 8;
            dr221[2] = 7;
            dr221[3] = "00020002001";
            dr221[4] = 2;
            dr221[5] = true;
            dr221[6] = "adfsdfds";
            dt.Rows.Add(dr221);

            DataRow dr00 = dt.NewRow();
            dr00[0] = "00测试";
            dr00[1] = 8;
            dr00[2] = 14;
            dr00[3] = "00020002001";
            dr00[4] = 2;
            dr00[5] = true;
            dr00[6] = "adfsdfds";
            dt.Rows.Add(dr00);

            Grid1.DataSource = dt;
            Grid1.DataBind();
        }

        protected void PageManager_CustomEvent(object sender, CustomEventArgs e)
        {
            if (e.EventArgument.IndexOf("GridTreeClick_") >= 0)
            {
                string rowindex = e.EventArgument.ToString().Split('_')[1];
                Grid1.DoTreeClick(rowindex);
            }
        }
    }
}

然后就是效果图了

再次感谢  @北京-没想好