一棵部门树（晚上来结帖）

TreeView就可以呀
http://wenwen.soso.com/z/q193195692.htm
http://www.tzwhx.com/newOperate/html/1/11/115/20786.html
属性可以设置是否显示CheckBox

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;namespace WebApp {
    public partial class TreeViewSample : System.Web.UI.Page {
        protected void Page_Load(object sender, EventArgs e) {
            TreeView1.ShowCheckBoxes = TreeNodeTypes.All;
            if (!IsPostBack) {
                CreateData();
                BindTree(dtlModel.Select("pid='0'"), null);
                ////父子节点联动
                //TreeView1.Attributes.Add("onclick", "OnTreeNodeChecked(event)");                ////获取节点值
                TreeView1.Attributes.Add("onclick", "getHideValue(event)");                DataView dv1 = dtlModel.DefaultView;
                dv1.RowFilter = "id=1";
                DataView dv2 = dtlModel.Copy().DefaultView;
                dv2.RowFilter = "id=2";
            }
        }        DataTable dtlModel = new DataTable();
        private void CreateData() {
            dtlModel.Columns.Add("id", typeof(Int32));
            dtlModel.Columns.Add("pid", typeof(Int32));
            dtlModel.Columns.Add("name");            for (int i = 1; i < 6; i++) {
                DataRow dr = dtlModel.NewRow();
                dr["id"] = i;
                dr["pid"] = 0;
                dr["name"] = i.ToString();
                dtlModel.Rows.Add(dr);
                for (int j = 1; j < 6; j++) {
                    DataRow dr1 = dtlModel.NewRow();
                    dr1["id"] = int.Parse(i.ToString() + j.ToString());
                    dr1["pid"] = i;
                    dr1["name"] = i + "_" + j;
                    dtlModel.Rows.Add(dr1);
                    for (int k = 1; k < 6; k++) {
                        DataRow dr2 = dtlModel.NewRow();
                        dr2["id"] = int.Parse(i.ToString() + j.ToString() + k.ToString());
                        dr2["pid"] = dr1["id"];
                        dr2["name"] = i + "_" + j + "_" + k;
                        dtlModel.Rows.Add(dr2);
                    }
                }
            }
        }        private void BindTree(DataRow[] rows, TreeNode node) {
            foreach (DataRow r in rows) {
                if (r["pid"] == DBNull.Value)
                    continue;                //如果是根结点，添加到TreeView控件
                if (r["pid"].ToString() == "0") {
                    TreeNode node1 = new TreeNode();
                    node1.Text = string.Format("<input name='hd_{0}' type='hidden' value='{1}'/>{2}", r["id"], r["id"], r["name"].ToString());
                    node1.Value = r["id"].ToString();

                    //node1.Target = "top";
                    TreeView1.Nodes.Add(node1);
                    BindTree(dtlModel.Select("pid=" + r["id"]), node1);
                }
                else if (node != null) {//否则添加到当前结点
                    TreeNode node1 = new TreeNode();
                    node1.Text = string.Format("<input name='hd_{0}' type='hidden' value='{1}'/>{2}", r["id"], r["id"], r["name"].ToString());
                    node1.Value = r["id"].ToString();
                    //node1.Target = "top";
                    node.ChildNodes.Add(node1);
                    BindTree(dtlModel.Select("pid=" + r["id"]), node1);//递归生成子树
                }
            }
        }        protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e) {
            Response.Write("aaa");
        }        protected void TreeView2_TreeNodeDataBound(object sender, TreeNodeEventArgs e) {
            e.Node.NavigateUrl = string.Format("project.aspx?projectnum=", e.Node.Value);
        }    }
}
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TreeViewSample.aspx.cs"
    Inherits="WebApp.TreeViewSample" %><!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>treeview父子节点联动</title>    <script type="text/javascript">        function OnTreeNodeChecked(evt) {
            var objNode = evt.srcElement ? evt.srcElement : evt.target;            if (objNode.checked == true) {
                alert(getHideValue(objNode));
                setParentChecked(objNode);
                var objID = objNode.getAttribute("ID");
                var objID = objID.substring(0, objID.indexOf("CheckBox"));
                var objParentDiv = document.getElementById(objID + "Nodes");
                if (objParentDiv != null && objParentDiv != "undefined") {
                    setChildChecked(objParentDiv);
                }
            }
            else {
                var objID = objNode.getAttribute("ID");
                var objID = objID.substring(0, objID.indexOf("CheckBox"));
                var objParentDiv = document.getElementById(objID + "Nodes");
                if (objParentDiv != null && objParentDiv != "undefined") {
                    setChildUnChecked(objParentDiv);
                }
            }            if (objNode.tagName && objNode.tagName != "INPUT") {
                if (objNode.tagName == "IMG") {
                    return true;
                }
                else {
                    if (window.event) {
                        window.event.returnValue = false;
                        return false;
                    }
                    else {
                        evt.preventDefault();
                        evt.stopPropagation();
                    }
                }
            }
        }        function getParentByTagName(element, tagName) {
            var parent = element.parentNode;
            var upperTagName = tagName.toUpperCase();            while (parent && (parent.tagName.toUpperCase() != upperTagName)) {
                parent = parent.parentNode ? parent.parentNode : parent.parentElement;
            }
            return parent;
        }        function setParentChecked(objNode) {
            var objParentDiv = getParentByTagName(objNode, "div");
            if (objParentDiv == null || objParentDiv == "undefined") {
                return;
            }
            var objID = objParentDiv.getAttribute("ID");
            objID = objID.substring(0, objID.indexOf("Nodes"));
            objID = objID + "CheckBox";
            var objParentCheckBox = document.getElementById(objID);
            if (objParentCheckBox == null || objParentCheckBox == "undefined") {
                return;
            }
            if (objParentCheckBox.tagName != "INPUT" && objParentCheckBox.type == "checkbox")
                return;
            objParentCheckBox.checked = true;
            setParentChecked(objParentCheckBox);
        }        function setChildUnChecked(divID) {
            var objchild = divID.children;
            var count = objchild.length;
            for (var i = 0; i < objchild.length; i++) {
                var tempObj = objchild[i];
                if (tempObj.tagName == "INPUT" && tempObj.type == "checkbox") {
                    tempObj.checked = false;
                }
                setChildUnChecked(tempObj);
            }
        }        function setChildChecked(divID) {
            var objchild = divID.children;
            var count = objchild.length;
            for (var i = 0; i < objchild.length; i++) {
                var tempObj = objchild[i];
                if (tempObj.tagName == "INPUT" && tempObj.type == "checkbox") {
                    tempObj.checked = true;
                }
                setChildChecked(tempObj);
            }
        }        function getHideValue(evt) {
            var node = evt.srcElement ? evt.srcElement : evt.target;            if (node.checked == true) {
                //alert(getParentByTagName(node, "td").innerHTML);
                var objchild = getParentByTagName(node, "td").getElementsByTagName("input");
                for (var i = 0; i < objchild.length; i++) {
                    var tempObj = objchild[i];
                    if (tempObj.tagName == "INPUT" && tempObj.type == "hidden") {
                        alert(tempObj.value);
                    }
                }
            }
        }
    </script></head>
<body>
    <form id="form1" runat="server">
    <div>
    </div>
    <asp:TreeView ID="TreeView1" runat="server">
    </asp:TreeView>
    <asp:TreeView ID="TreeView2" runat="server" ShowCheckBoxes="All" OnSelectedNodeChanged="TreeView1_SelectedNodeChanged">
        <Nodes>
            <asp:TreeNode Text="root" Value="root">
                <asp:TreeNode Text="a" Value="a"></asp:TreeNode>
            </asp:TreeNode>
        </Nodes>
    </asp:TreeView>
    </form>
</html>

public string GetInformation(string option, string paparcount)
    {
        StringBuilder bd = new StringBuilder();
        string sql="获取顶层菜单名称";
        DataTable tb = ado.GetDataSet(sql).Tables[0];
        bd.Append("<table border=\"0\" cellpadding=\"0\" cellspacing=\"1\" style=\"width: 100%;font-size: 12px;\" bgcolor=\"#666699\" >");

        for (int i = 0; i < tb.Rows.Count; i++)
        {//可以加上checkbox；
            bd.Append("<tr align=\"left\" bgcolor=\"#E8E8E8\" height=\"23px\">");
            bd.Append("   <td width=\"30px\" style=\"text-align: center\">" + tb.Rows[i][0].ToString() + "</td>");
            bd.Append("</tr>");
            string str = " ";
            str = "获取次级菜单名称";
            DataTable table = ado.GetDataSet(str).Tables[0];
            for (int j = 0; j < table.Rows.Count; j++)
            {
                bd.Append("<tr align=\"left\" bgcolor=\"#E8E8E8\" height=\"23px\">");
                bd.Append("   <td style=\"text-align: center\">" + tb.Rows[j][0].ToString()+ "</td>");
                bd.Append("</tr>");
            }
        }
        bd.Append("</table>");
        string information = bd.ToString();
        return information;
    }
总体来说就是用循环将数据库读取的内容填充table，然后用字符串串起来付给一个节点显示

楼上的是什么代码啊？怎么那么长啊？看我的！public partial class BindTreeView : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {            departList = new List<Department>() {
                new Department{ ID = 1, ParentID= 0, Name=" 老总"},
                new Department{ ID = 2, ParentID= 1, Name=" 市场副总"},
                new Department{ ID = 3, ParentID= 1, Name=" 技术副总"},
                new Department{ ID = 4, ParentID= 1, Name=" 行政副总"},
                new Department{ ID = 5, ParentID= 2, Name=" 市场部"},
                new Department{ ID = 6, ParentID= 4, Name=" 财务部"},
                new Department{ ID = 7, ParentID= 4, Name=" 行政部"},
                new Department{ ID = 8, ParentID= 3, Name=" C#技术部"},
                new Department{ ID = 9, ParentID= 3, Name=" JAVA技术部"},
                new Department{ ID = 10, ParentID= 9, Name=" J2EE技术部"},
                new Department{ ID = 11, ParentID= 9, Name=" J2ME技术部"}
            };            TreeNode root = new TreeNode();            root.Text = this.departList[0].Name;
            root.Value = this.departList[0].ID.ToString();
            root.Checked = true;            this.TreeView1.Nodes.Add(root);            this.BindToTree(root);
        }        /// <summary>
        /// 对象列表
        /// </summary>
        private List<Department> departList;
        /// <summary>
        /// 绑定到树
        /// </summary>
        /// <param name="node"></param>
        private void BindToTree(TreeNode node)
        {
            if (node != null)
            {
                var temp = from dept in departList
                           where dept.ParentID.ToString() == node.Value
                           select dept;                List<Department> tempList = temp.ToList<Department>();                tempList.ForEach(delegate(Department t)
                {
                    TreeNode tnode = new TreeNode();
                    tnode.Text = t.Name;
                    tnode.Value = t.ID.ToString();
                    tnode.Checked = true;                    node.ChildNodes.Add(tnode);                    BindToTree(tnode);
                });
            }
        }
    }

经典 treeview可以要是不嫌麻烦就用JS

数据库结构：
menuID         content            parentID
  1             一级                 0
  2             科技                 1
  3             沈阳                 2
  4             二级                 0
  5             美食                 4
  6             哈尔滨               5
  7             三级                 0
  8             美食                 7
  9             大连                 8    private void LoadTree()
    {
        treeView1.Nodes.Clear();     //先清空树
        DataTable dt = ds.Tables[0]; //把表结构从数据库查出来放到DataTable中
        //循环绑定父节点
        foreach (DataRow dr in dt.Rows)
        {
            //遍历加载父节点
            if (Convert.ToInt32(dr["parentID"]) == 0)
            {
                TreeNode newNode = new TreeNode();
                newNode.Text = dr["content"].ToString();
                newNode.NavigateUrl = "Switch.aspx?id=" + dr["menuID"].ToString();
                newNode.Target = "main";
                treeView1.Nodes.Add(newNode);                ChildLoad(dr, newNode.ChildNodes, dt);
            }
        }        this.treeView1.ExpandAll();
    }    //绑定子节点
    private void ChildLoad(DataRow dr, TreeNodeCollection newNode, DataTable dt)
    {
        foreach (DataRow row in dt.Rows)
        {
            if (Convert.ToInt32(dr["menuID"]) == Convert.ToInt32(row["parentID"]))
            {
                TreeNode childNode = new TreeNode();
                childNode.Text = row["content"].ToString();
                childNode.NavigateUrl = "Switch.aspx?id=" + row["menuID"].ToString();
                childNode.Target = "main";
                newNode.Add(childNode);                ChildLoad(row, childNode.ChildNodes, dt);   //递归子节点
            }
        }
    }

调试易

一棵部门树（晚上来结帖）

解决方案 »