search

Home  >  Article  >  Web Front-end  >  jQuery uses the zTree plug-in to implement tree menu and asynchronous loading_jquery

jQuery uses the zTree plug-in to implement tree menu and asynchronous loading_jquery

WBOY
WBOYOriginal
2016-05-16 15:13:221573browse

The example in this article explains how jQuery uses the zTree plug-in to implement tree menu and asynchronous loading, and it can be edited and shared with everyone for your reference. The specific content is as follows

Rendering:

1. HTML code

<html>
<head runat="server">
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <title></title>
 <link href="zTree/css/demo.css" rel="stylesheet" />
 <link href="zTree/css/zTreeStyle/zTreeStyle.css" rel="stylesheet" />
 <script src="zTree/js/jquery-1.4.4.min.js"></script>
 <script src="zTree/js/jquery.ztree.core-3.5.js"></script>
 <script src="zTree/js/jquery.ztree.excheck-3.5.js"></script>
 <script src="zTree/js/jquery.ztree.exedit-3.5.js"></script>
  <script type="text/javascript">
   var setting = {
  async: {
   enable: true,
   url: "AjaxPage/GetAjax.aspx&#63;z=sdfww234edfsd",
   autoParam: ["id"],
   dataFilter: filter,
   contentType: "application/json",
   type:"get"
  },
  view: {
   expandSpeed: "",
   addHoverDom: addHoverDom,
   removeHoverDom: removeHoverDom,
   selectedMulti: false
  },
  check: {
   enable: true
  },
  edit: {
   enable: true
  },
  data: {
   simpleData: {
    enable: true
   }
  },
  callback: {
   beforeRemove: beforeRemove,
   beforeRename: beforeRename,
  }
 };
 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;
 }
 function beforeRemove(treeId, treeNode) {
  var zTree = $.fn.zTree.getZTreeObj("treeDemo");
  zTree.selectNode(treeNode);
  return confirm("确认删除 节点 -- " + treeNode.name + " 吗？");
 }
 function beforeRename(treeId, treeNode, newName) {
  if (newName.length == 0) {
   alert("节点名称不能为空.");
   return false;
  }
  return true;
 }

 var newCount = 1;
 function addHoverDom(treeId, treeNode) {
  var sObj = $("#" + treeNode.tId + "_span");
  if (treeNode.editNameFlag || $("#addBtn_" + treeNode.tId).length > 0) return;
  var addStr = "<span class='button add' id='addBtn_" + treeNode.tId
   + "' title='add node' onfocus='this.blur();'></span>";
  sObj.after(addStr);
  console.log("add  " + "#addBtn_" + treeNode.id);
  var btn = $("#addBtn_" + treeNode.tId);
  if (btn) btn.bind("click", function () {
   var zTree = $.fn.zTree.getZTreeObj("treeDemo");
   zTree.addNodes(treeNode, { id: (100 + newCount), pId: treeNode.id, name: "new node" + (newCount++) });
   return false;
  });
 };
 function removeHoverDom(treeId, treeNode) {
  console.log("remove  " + "#addBtn_" + treeNode.id);
  $("#addBtn_" + treeNode.tId).unbind().remove();
 };
 $(document).ready(function () {
  $.fn.zTree.init($("#treeDemo"), setting);
 });
  </script>
</head>
<body>
 <ul id="treeDemo" class="ztree" style="width: 560px; overflow: auto;"></ul>
</body>
</html>

2. Background data of asynchronous requests: 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace CssStudyWeb.AjaxPage
{
 public partial class GetAjax : System.Web.UI.Page
 {
  protected void Page_Load(object sender, EventArgs e)
  {
   if (Request.QueryString["z"] == "sdfww234edfsd")//根据会员卡号，查询会员卡信息
   {
    StringBuilder sb = new StringBuilder();
    sb.Append("[");
    sb.Append("{\"id\":\"1\",\"name\":\"销售单管理\",\"pId\":\"0\"},");
    sb.Append("{\"id\":\"101\",\"name\":\"销售单列表\",\"pId\":\"1\"},");
    sb.Append("{\"id\":\"102\",\"name\":\"销售单综合查询\",\"pId\":\"1\"},");

    sb.Append("{\"id\":\"2\",\"name\":\"系统管理\",\"pId\":\"0\"},");
    sb.Append("{\"id\":\"103\",\"name\":\"权限组管理\",\"pId\":\"2\"},");
    sb.Append("{\"id\":\"104\",\"name\":\"权限菜单管理\",\"pId\":\"2\"}");
    sb.Append("]");
    Response.Write(sb.ToString());
   }
  }
 }
}

The above is all the code for the zTree plug-in to implement tree menu and asynchronous loading. I hope it will be helpful to everyone's learning.

Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：js method to determine whether the mouse position is in a certain div_javascript skillsNext article：js method to determine whether the mouse position is in a certain div_javascript skills

Related articles

See more