C#使用Jquery zTree实现树状结构显示_异步数据加载
JQuery-Ztree下载地址：https://github.com/zTree/zTree_v3
JQuery-Ztree数结构演示页面： http://www.treejs.cn/v3/demo.php#_101
关于zTree的详细解释请看演示页面，还有zTree帮助Demo。
下面简要讲解下本人用到的其中一个实例（直接上关键代码了）：
异步加载节点数据：
A-前台：
<link href="zTree_v3-master/css/zTreeStyle/zTreeStyle.css" rel="stylesheet" /> <script src="zTree_v3-master/js/jquery.ztree.core.js" type="text/javascript"></script> <script language="JavaScript" type="text/javascript"> var setting = {
async: {
enable: true, url: "../Handler/ShoppingHandler.ashx", //请求的一般处理程序 autoParam: ["id"], //自带参数id--来自于节点id otherParam: {
"type": "GetUserLevelList" }
, //其他参数自定义 dataFilter: filter, //数据过滤 type: "post" //请求方式 }
}
;
function filter(treeId, parentNode, childNodes) {
if (!childNodes) return null;
for (var i = 0, l = childNodes.length;
i < l;
i++) {
childNodes[i].name = childNodes[i].name.replace(/.n/g, '.');
}
return childNodes;
}
$(document).ready(function () {
$.fn.zTree.init($("#treeDemo"), setting);
//渲染树结构 }
);
</script><div class="zTreeDemoBackground left"> <ul id="treeDemo" class="ztree"></ul></div>
B后台：
using MobileBusiness.Common.Data;
using MobileBusiness.Library.Passport;
using MobileBusiness.Shopping.Data;
using MobileBusiness.Shopping.Data.Common;
using MobileBusiness.Shopping.Data.Entity;
using MobileBusiness.Web.Library.Script;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using ShoppingData = MobileBusiness.Shopping.Data.Entity;
namespace MobileBusiness.Shopping.BusinessManage.Handler{
/// <summary> /// Shopping 的摘要说明 /// </summary> public class ShoppingHandler : IHttpHandler {
//当前登录用户信息 WeChatUser weChatUser = WeChatIdentity.CurrentUser;
public void ProcessRequest(HttpContext context) {
string result = "";
if (context.Request["type"] != null) {
string requestType = context.Request["type"];
try {
switch (requestType) {
//获取用户信息等级列表 case "GetUserLevelList": result = this.GetUserLevelList(context);
break;
default: break;
}
}
catch (Exception ex) {
result = ex.Message;
}
}
context.Response.ContentType = "text/html";
context.Response.Write(result);
context.Response.End();
}
private string GetUserLevelList(HttpContext context) {
string parentUserPhone = context.Request["id"];
return GetUserCollByPhone(parentUserPhone);
}
private string GetUserCollByPhone(string phone) {
//编码，父编码，名称，是否打开，打开图片，关闭图片 //{
id:1, pId:0, name:"展开、折叠 自定义图标不同", open:true, iconOpen:"../../../css/zTreeStyle/img/diy/1_open.png", iconClose:"../../../css/zTreeStyle/img/diy/1_close.png"}
, //编码，父编码，名称，是否打开，显示图片 //{
id: 11, pId: 1, name: "叶子节点1", icon: "../../../css/zTreeStyle/img/diy/2.png"}
, List<object> result = new List<object>();
ShoppingData.UserInfoCollection userColl = ShoppingData.UserInfoAdapter.Instance.LoadByParentUserPhone(phone);
userColl.ForEach(user => {
result.Add(new {
id = user.Phone, pid = phone, name = user.UserName, isParent = ShoppingData.UserInfoAdapter.Instance.LoadByParentUserPhone(user.Phone).Count > 0 ? true : false }
);
}
);
return JsonConvert.SerializeObject(result);
}
public bool IsReusable {
get {
return false;
}
}
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
