[原创]asp.net 2.0下的自定义树(myTreeView)

自己在项目里用的类，大家看一下~~

  1using System;
  2using System.Collections.Generic;
  3using System.Text;
  4using System.Data;
  5using System.Web.UI.WebControls;
  6
  7/**//*-----------------------------------------------------------
  8 * 
  9 * Copyright (C) 2009 版权所有
 10 *
 11 * 文件名：myTreeView.cs
 12 * 
 13 * myTreeView自定义树
 14 * 
 15 * 主要功能：
 16 * 压缩、解压
 17 * 
 18 *  
 19 * 创建标识：进哥
 20 * 作者：进哥
 21 * 来源：http://www.cnblogs.com/pcsky/archive/2009/10/15/1584124.html
 22 * 
 23-----------------------------------------------------------*/
 24
 25namespace LTP.Common
 26{
 27    /**//// <summary>
 28    /// myTreeView 的摘要说明。
 29    /// </summary>
 30    public class myTreeView
 31    {
 32        private string _IDField;
 33        private string _NameField;
 34        private string _ParentField;
 35        private string _RootID;
 36        private string _NavigateUrl;
 37        private string _NavigateArg;
 38        private DataSet _Dst;
 39        private string _Target;
 40        private string _PageNameField;
 41        private int _ExpandLevel;
 42
 43        /**//// <summary>
 44        /// TreeView自定义基类
 45        /// </summary>
 46        /// <param name="IDField">ID字段</param>
 47        /// <param name="NameField">Name字段</param>
 48        /// <param name="ParentField">父级字段</param>
 49        /// <param name="RootID">根节点号</param>
 50        /// <param name="Dst">DataSet</param>
 51        public myTreeView(string IDField, string NameField, string ParentField, string RootID, ref DataSet Dst)
 52        {
 53            _IDField = IDField;
 54            _NameField = NameField;
 55            _ParentField = ParentField;
 56            _RootID = RootID;
 57            _Dst = Dst;
 58            _Target = "mainFrame";
 59            _NavigateArg = "";
 60            _ExpandLevel = 1;
 61        }
 62
 63        public myTreeView()
 64        {
 65        }
 66
 67        参数#region 参数
 68        /**//// <summary>
 69        /// ID字段
 70        /// </summary>
 71        public string IDField
 72        {
 73            set { _IDField = value; }
 74            get { return _IDField; }
 75        }
 76
 77        /**//// <summary>
 78        /// Name字段
 79        /// </summary>
 80        public string NameField
 81        {
 82            set { _NameField = value; }
 83            get { return _NameField; }
 84        }
 85
 86        /**//// <summary>
 87        /// 父级字段
 88        /// </summary>
 89        public string ParentField
 90        {
 91            set { _ParentField = value; }
 92            get { return _ParentField; }
 93        }
 94
 95        /**//// <summary>
 96        /// 根节点号
 97        /// </summary>
 98        public string RootID
 99        {
100            set { _RootID = value; }
101            get { return _RootID; }
102        }
103
104        /**//// <summary>
105        /// 超链接
106        /// </summary>
107        public string NavigateUrl
108        {
109            set { _NavigateUrl = value; }
110            get { return _NavigateUrl; }
111        }
112
113        /**//// <summary>
114        /// 超链接参数字段
115        /// </summary>
116        public string NavigateArg
117        {
118            set { _NavigateArg = value; }
119            get { return _NavigateArg; }
120        }
121
122        /**//// <summary>
123        /// 页面名的字段
124        /// </summary>
125        public string PageNameField
126        {
127            set { _PageNameField = value; }
128            get { return _PageNameField; }
129        }
130
131
132        /**//// <summary>
133        /// 超链接目标
134        /// </summary>
135        public int ExpandLevel
136        {
137            set { _ExpandLevel = value; }
138            get { return _ExpandLevel; }
139        }
140
141
142        /**//// <summary>
143        /// 超链接目标
144        /// </summary>
145        public string Target
146        {
147            set { _Target = value; }
148            get { return _Target; }
149        }
150
151        /**//// <summary>
152        /// 超链接目标
153        /// </summary>
154        public DataSet Dst
155        {
156            set { _Dst = value; }
157            get { return _Dst; }
158        }
159        #endregion
160
161        public void BindTree(System.Web.UI.WebControls.TreeView _myTree)
162        {
163            _myTree.Nodes.Clear();
164            _myTree.MaxDataBindDepth = ExpandLevel;
165
166            InitTree(_myTree.Nodes, RootID);
167        }
168
169        private void InitTree(TreeNodeCollection _Nds, string _parentID)
170        {
171            TreeNode tmpNd;
172            DataRow[] rows = Dst.Tables[0].Select(ParentField + "=" + _parentID);
173
174            foreach (DataRow row in rows)
175            {
176                tmpNd = new TreeNode();
177                tmpNd.Value = row[IDField].ToString();
178                tmpNd.Text = row[NameField].ToString();
179
180                if (PageNameField != "" && PageNameField != null)
181                {
182                    if (row[PageNameField].ToString() != "")
183                        tmpNd.NavigateUrl =  ReturnPlus.GetAppPath() + row[PageNameField].ToString();
184
185                    if (NavigateArg != "")
186                    {
187                        if (row[NavigateArg].ToString() != null)
188                            tmpNd.NavigateUrl = String.Format(row[PageNameField].ToString(), row[NavigateArg]);
189                    }
190                }
191                else
192                {
193                    tmpNd.NavigateUrl = String.Format(NavigateUrl, row[NavigateArg]);
194                }
195
196                if (tmpNd.NavigateUrl == "" || tmpNd.NavigateUrl == null)
197                {
198                    //tmpNd.SelectAction = TreeNodeSelectAction.SelectExpand;                
199                    //tmpNd.NavigateUrl = "javascript:TreeView_ToggleNode(myTree_Data," + tmpNd. +",myTreen3,'l',myTreen3Nodes)"
200                    //tmpNd.NavigateUrl = "#";
201                }
202                else
203                {
204                    tmpNd.Target = Target;
205                }
206
207                _Nds.Add(tmpNd);
208                InitTree(tmpNd.ChildNodes, tmpNd.Value);
209            }
210        }
211    }
212}
213