#region DropDownList无限递归显示层次关系 /// <summary> /// 创建无限分级下拉列表框 /// </summary> /// <param name="ddlst">下拉控件</param> /// <param name="dt">源DataTable</param> /// <param name="text">text字段</param> /// <param name="value">value字段</param> /// <param name="parentid">深度字段 例如parentid</param> public static void CreateLevelDropDown(DropDownList ddlst, DataTable dt, string text, string value, string parentid) { ArrayList allItems = new ArrayList(); DataRow[] rows = dt.Select(parentid + "=0"); foreach (DataRow row in rows) CreateLevelDropDownAssistant(dt, ref allItems, row, string.Empty, text, value, parentid); ListItem[] items = new ListItem[allItems.Count]; allItems.CopyTo(items); ddlst.Items.AddRange(items); } /// <summary> /// 递归绑定子节点 /// </summary> /// <param name="dt">源DataTable</param> /// <param name="items">数组</param> /// <param name="parentRow">当前节点</param> /// <param name="curHeader">前缀</param> /// <param name="text">text字段</param> /// <param name="value">value字段</param> /// <param name="parentid">深度字段 例如parentid</param> private static void CreateLevelDropDownAssistant(DataTable dt, ref ArrayList items, DataRow parentRow, string curHeader, string text, string value, string parentid) { ListItem newItem = new ListItem(curHeader + Until.CutString(parentRow[text].ToString(), 18, true), parentRow[value].ToString()); items.Add(newItem); DataRow[] rows = dt.Select(parentid + "=" + newItem.Value); for (int i = 0; i < rows.Length - 1; i++) CreateLevelDropDownAssistant(dt, ref items, rows[i], curHeader.Replace("┣", "┃").Replace("┗", "┣") + "┣", text, value, parentid); if (rows.Length > 0) CreateLevelDropDownAssistant(dt, ref items, rows[rows.Length - 1], curHeader.Replace("┣", "┃").Replace("┗", "┣") + "┗", text, value, parentid); } #endregion #region TreeView 无限递归显示层次关系目录树 /// <summary> /// 创建无限分级目录树TreeView /// </summary> /// <param name="treeview">TreeView空间</param> /// <param name="dt">数据源DataTable</param> /// <param name="text">text字段</param> /// <param name="value">value字段</param> /// <param name="parentid">深度字段 例如parentid</param> public static void CreateLevelTreeView(TreeView treeview, DataTable dt, string text, string value, string parentid) { DataView dv = dt.DefaultView; dv.RowFilter = parentid + "=0"; foreach (DataRowView drv in dv) { TreeNode node = new TreeNode(); node.Text = drv[text].ToString(); node.Value = drv[value].ToString(); node.Expanded = false; treeview.Nodes.Add(node); CreatTreeViewChildNode(dv, node, text, value, parentid); } } /// <summary> /// 递归绑定子节点 /// </summary> /// <param name="dv">源DataView</param> /// <param name="parentNode">当前节点</param> /// <param name="text">text字段</param> /// <param name="value">value字段</param> /// <param name="parentid">深度字段 例如parentid</param> private static void CreatTreeViewChildNode(DataView dv, TreeNode parentNode, string text, string value, string parentid) { dv.RowFilter = parentid + "=" + parentNode.Value; foreach (DataRowView row in dv) { TreeNode replyNode = new TreeNode(); replyNode.Text = row[text].ToString(); replyNode.Value = row[value].ToString(); replyNode.Expanded = false; parentNode.ChildNodes.Add(replyNode); CreatTreeViewChildNode(dv, replyNode, text, value, parentid); } } /// <summary> /// 创建无限分级目录树TreeView /// </summary> /// <param name="treeview">TreeView空间</param> /// <param name="dt">数据源DataTable</param> /// <param name="text">text字段</param> /// <param name="value">value字段</param> /// <param name="url">url字段</param> /// <param name="parentid">深度字段 例如parentid</param> public static void CreateLevelTreeView(TreeView treeview, DataTable dt, string text, string value, string url, string parentid) { DataView dv = dt.DefaultView; dv.RowFilter = parentid + "=0"; foreach (DataRowView drv in dv) { TreeNode node = new TreeNode(); node.Text = drv[text].ToString(); node.Value = drv[value].ToString(); node.NavigateUrl = drv[url].ToString(); node.Expanded = false; treeview.Nodes.Add(node); CreatTreeViewChildNode(dv, node, text, value, url, parentid); } } /// <summary> /// 递归绑定子节点 /// </summary> /// <param name="dv">源DataView</param> /// <param name="parentNode">当前节点</param> /// <param name="text">text字段</param> /// <param name="value">value字段</param> /// <param name="url">url字段</param> /// <param name="parentid">深度字段 例如parentid</param> private static void CreatTreeViewChildNode(DataView dv, TreeNode parentNode, string text, string value, string url, string parentid) { dv.RowFilter = parentid + "=" + parentNode.Value; foreach (DataRowView row in dv) { TreeNode replyNode = new TreeNode(); replyNode.Text = row[text].ToString(); replyNode.Value = row[value].ToString(); replyNode.NavigateUrl = row[url].ToString(); replyNode.Expanded = false; parentNode.ChildNodes.Add(replyNode); CreatTreeViewChildNode(dv, replyNode, text, value, url, parentid); } } #endregion #region 创建无限分级ListBox /// <summary> /// 创建无限分级ListBox /// </summary> /// <param name="ddlst">ListBox控件</param> /// <param name="dt">源DataTable</param> /// <param name="text">text字段</param> /// <param name="value">value字段</param> /// <param name="parentid">深度字段 例如parentid</param> public static void CreateLevelListBox(ListBox ddlst, DataTable dt, string text, string value, string parentid) { ArrayList allItems = new ArrayList(); DataRow[] rows = dt.Select(parentid + "=0"); foreach (DataRow row in rows) CreateLevelListBoxAssistant(dt, ref allItems, row, string.Empty, text, value, parentid); ListItem[] items = new ListItem[allItems.Count]; allItems.CopyTo(items); ddlst.Items.AddRange(items); } /// <summary> /// 递归绑定子节点 /// </summary> /// <param name="dt">源DataTable</param> /// <param name="items">数组</param> /// <param name="parentRow">当前节点</param> /// <param name="curHeader">前缀</param> /// <param name="text">text字段</param> /// <param name="value">value字段</param> /// <param name="parentid">深度字段 例如parentid</param> private static void CreateLevelListBoxAssistant(DataTable dt, ref ArrayList items, DataRow parentRow, string curHeader, string text, string value, string parentid) { ListItem newItem = new ListItem(curHeader + Until.CutString(parentRow[text].ToString(), 18, true), parentRow[value].ToString()); items.Add(newItem); DataRow[] rows = dt.Select(parentid + "=" + newItem.Value); for (int i = 0; i < rows.Length - 1; i++) CreateLevelListBoxAssistant(dt, ref items, rows[i], curHeader.Replace("┣", "┃").Replace("┗", "┣") + "┣", text, value, parentid); if (rows.Length > 0) CreateLevelListBoxAssistant(dt, ref items, rows[rows.Length - 1], curHeader.Replace("┣", "┃").Replace("┗", "┣") + "┗", text, value, parentid); } #endregion
- 打造DropDownList,TreeView,ListBox无限极分类目录树
- 无限级递归生成HTML示例及ListBox,DropDownList等无限树
- 用递归无限级绑定 treeview,DropDownList
- TreeView无限极绑定
- 无限分类树--Treeview
- 爱德华无限分类目录树JSP版(EdwardTree V1.0)
- 爱德华无限分类目录树ASP版(EdwardTree V1.0)
- ListBox&TreeView
- 动态绑定treeview 无限极
- 利用JQUERY的TREEVIEW插件生成无限极树
- 利用JQUERY的TREEVIEW插件生成无限极树
- 利用JQUERY的TREEVIEW插件生成无限极树
- 利用JQUERY的TREEVIEW插件生成无限极树 .
- 遍历 DropDownList ListBox
- 使用Asp.net 2.0设计的三种控件（TreeView，DropDownList，GridView）的无限分类
- TreeView 绑定数据---递归查询无限极TreeView
- 无限极分类绑定TreeView控件效果
- 无限极分类绑定TreeView控件效
- Linux module实现方法
- 删除字符串开始和结束的空格。
- Jquery 获取表单text,areatext,radio,checkbox,select值的代码(本内容来自唯才教育网http://www.hn1c.com 原文地址：http://www.hn1
- 决斗 RQNOJ
- 一个Android下的自动下载歌词的代码
- 打造DropDownList,TreeView,ListBox无限极分类目录树
- 如何获取gps卫星导航定位，解决getLastKnownLocation返回null
- 在Oracle如何通过配置可以禁用Form的导出功能(Form-->Export的功能)
- 重读经典-《Effective C++》Item2：尽量以const,enum,inline替换#define
- JQuery小技巧——程序设计规范
- Android 驱动和系统开发 2. 解析模拟器GPS模块 （原创）
- VS2010中的App_Code文件夹问题
- 编写UDEV规则（howto）
- Maints管理
