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  • z-tree官方提供的下拉菜单案例

    1、z-tree官方提供的下拉菜单案例

    <!DOCTYPE html>
    <HTML>
    <HEAD>
        <TITLE> ZTREE DEMO - select menu</TITLE>
        <meta http-equiv="content-type" content="text/html; charset=UTF-8">
        <link rel="stylesheet" href="../../../css/demo.css" type="text/css">
        <link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
        <script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
        <script type="text/javascript" src="../../../js/jquery.ztree.core.js"></script>
        <!--  <script type="text/javascript" src="../../../js/jquery.ztree.excheck.js"></script>
          <script type="text/javascript" src="../../../js/jquery.ztree.exedit.js"></script>-->
        <SCRIPT type="text/javascript">
            <!--
            var setting = {
                view: {
                    dblClickExpand: false
                },
                data: {
                    simpleData: {
                        enable: true
                    }
                },
                callback: {
                    beforeClick: beforeClick,
                    onClick: onClick
                }
            };
    
            var zNodes =[
                {id:1, pId:0, name:"北京"},
                {id:2, pId:0, name:"天津"},
                {id:3, pId:0, name:"上海"},
                {id:6, pId:0, name:"重庆"},
                {id:4, pId:0, name:"河北省", open:true},
                {id:41, pId:4, name:"石家庄"},
                {id:42, pId:4, name:"保定"},
                {id:43, pId:4, name:"邯郸"},
                {id:44, pId:4, name:"承德"},
                {id:5, pId:0, name:"广东省", open:true},
                {id:51, pId:5, name:"广州"},
                {id:52, pId:5, name:"深圳"},
                {id:53, pId:5, name:"东莞"},
                {id:54, pId:5, name:"佛山"},
                {id:6, pId:0, name:"福建省", open:true},
                {id:61, pId:6, name:"福州"},
                {id:62, pId:6, name:"厦门"},
                {id:63, pId:6, name:"泉州"},
                {id:64, pId:6, name:"三明"}
             ];
    
            function beforeClick(treeId, treeNode) {
                var check = (treeNode && !treeNode.isParent);
                if (!check) alert("只能选择城市...");
                return check;
            }
            
            function onClick(e, treeId, treeNode) {
                var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
                nodes = zTree.getSelectedNodes(),
                v = "";
                nodes.sort(function compare(a,b){return a.id-b.id;});
                for (var i=0, l=nodes.length; i<l; i++) {
                    v += nodes[i].name + ",";
                }
                if (v.length > 0 ) v = v.substring(0, v.length-1);
                var cityObj = $("#citySel");
                cityObj.attr("value", v);
            }
    
            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 == "menuContent" || $(event.target).parents("#menuContent").length>0)) {
                    hideMenu();
                }
            }
    
            $(document).ready(function(){
                $.fn.zTree.init($("#treeDemo"), setting, zNodes);
            });
            //-->
        </SCRIPT>
        <style type="text/css">
        </style>
     </HEAD>
    
    <BODY>
    <h1>下拉菜单</h1>
    <h6>[ 文件路径: super/select_menu.html ]</h6>
    <div class="content_wrap">
        <div class="zTreeDemoBackground left">
            <ul class="list">
                <li class="title">&nbsp;&nbsp;<span class="highlight_red">选择城市时,按下 Ctrl 或 Cmd 键可以进行多选</span></li>
                <li class="title">&nbsp;&nbsp;城市:<input id="citySel" type="text" readonly value="" style="120px;"/>
            &nbsp;<a id="menuBtn" href="#" onclick="showMenu(); return false;">选择</a></li>
            </ul>
        </div>
        <div class="right">
            <ul class="info">
                <li class="title"><h2>实现方法说明</h2>
                    <ul class="list">
                    <li>用 zTree 实现这种下拉菜单,应该说是比较容易的,你只需要控制 zTree 所在容器的隐藏/显示,以及位置即可。</li>
                    <li class="highlight_red">zTree v3.x 实现了多点选中功能,因此对于需要多选的下拉菜单也易如反掌。</li>
                    <li class="highlight_red">利用 setting 的各项配置参数,完全可以满足大部分的功能需求。</li>
                    </ul>
                </li>
            </ul>
        </div>
    </div>
    
    <div id="menuContent" class="menuContent" style="display:none; position: absolute;">
        <ul id="treeDemo" class="ztree" style="margin-top:0; 160px;"></ul>
    </div>
    </BODY>
    </HTML>
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  • 原文地址:https://www.cnblogs.com/xy-ouyang/p/11222587.html
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