7，下拉菜单（带 checkbox 的多选）
-----后台
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
public string GetzNodes()
{
StringBuilder sb = new StringBuilder();
sb.Append("<script>");
sb.Append("var zNodes =[");
//*****************************************加入遍历代码
for (int i = 0; i < 100; i++)
{
if (i > 50)
{
sb.Append(SetParametes(i.ToString(), "1", "b"));
}
else
sb.Append(SetParametes(i.ToString(), "-1", "a"));
}
//********************************************************
sb.Append("];");
sb.Append("</script>");
return sb.ToString();
}
/// <summary>
/// 设置节点
/// </summary>
/// <param name="id">id</param>
/// <param name="pid">父级id</param>
/// <param name="name">名称</param>
/// <param name="open">是否展开？</param>
/// <returns>返回节点</returns>
private string SetParametes(string id, string pid, string name,bool open=false)
{
StringBuilder sb = new StringBuilder();
sb.Append("{");
sb.AppendFormat("id:{0},",id);
sb.AppendFormat("pId:{0},",pid);
if (open)
{
sb.AppendFormat("name:\"{0}\",", name);
sb.Append("open: true");
}
else
{
sb.AppendFormat("name:\"{0}\"", name);
}
sb.Append("},");
return sb.ToString();
}
}
-----前台
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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></title>
<link href="../css/demo_new.css" rel="stylesheet" type="text/css" />
<link href="../css/zTreeStyle/zTreeStyle.css" rel="stylesheet" type="text/css" />
<script src="../js/jquery-1.4.4.min.js" type="text/javascript"></script>
<script src="../js/jquery.ztree.core-3.5.js" type="text/javascript"></script>
<script src="../js/jquery.ztree.excheck-3.5.js" type="text/javascript"></script>
</head>
<%=GetzNodes()%>
<script type="text/javascript">
var setting = { check: { enable: true,
chkboxType: { "Y": "ps", "N": "ps"} }//
//chkboxType: { "Y": "p", "N": "ps"}}//父级联动
//chkboxType : { "Y": "s", "N": "ps" } }//子级联动
//chkboxType : { "Y": "", "N": "ps" } }//不联动
,view: {dblClickExpand: false},data: {simpleData: {enable: true}},callback: {beforeClick: beforeClick,onCheck: onCheck}};
$(document).ready(function () {$.fn.zTree.init($("#treeDemo"), setting, zNodes); });
function beforeClick(treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
zTree.checkNode(treeNode, !treeNode.checked, null, true);
return false;
}
function showMenu() {
var cityObj = $("#citySel");
var cityOffset = $("#citySel").offset();
$("#menuContent").css({ left: cityOffset.left + "px", top: cityOffset.top + cityObj.outerHeight() + "px" }).slideDown("fast");
$("body").bind("mousedown", onBodyDown);
}
function hideMenu() {
$("#menuContent").fadeOut("fast");
$("body").unbind("mousedown", onBodyDown);
}
function onBodyDown(event) {
if (!(event.target.id == "menuBtn" || event.target.id == "citySel" || event.target.id == "menuContent" || $(event.target).parents("#menuContent").length > 0)) {
hideMenu();
}
}
$(document).ready(function () {
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
});
//选中之后触发的事件
function onCheck(e, treeId, treeNode) {
//ids：存放着一组id
//v：存放着一组值
var ids = "";
var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
nodes = zTree.getCheckedNodes(true),
v = "";
for (var i = 0, l = nodes.length; i < l; i++) {
v += nodes[i].name + ",";
ids += nodes[i].id + ",";
}
if (v.length > 0) v = v.substring(0, v.length - 1);
if (ids.length > 0) ids = ids.substring(0, ids.length - 1);
var cityObj = $("#citySel");
cityObj.attr("value", v);
}
</script>
<body>
<form id="form1" runat="server">
<!------------------Treediv--------------------->
<div class="zTreeDemoBackground left">
<ul class="list">
<li class="title"><asp:TextBox ID="citySel" ReadOnly="true" runat="server"></asp:TextBox> <a id="A1" href="#" οnclick="showMenu(); return false;">选择</a></li>
</ul>
</div>
<div id="menuContent" class="menuContent" style="display:none; position: absolute;">
<ul id="treeDemo" class="ztree" style="margin-top:0; width:160px;"></ul>
</div>
<!------------------Treediv--------------------->
</form>
</body>
</html>
转载于:https://blog.51cto.com/962410314/1596039