效果图：
代码：
<!DOCTYPE html> <HTML> <HEAD> <TITLE> ZTREE DEMO - beforeCheck / onCheck</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: { selectedMulti: false }, check: { enable: true }, data: { simpleData: { enable: true } }, callback: { beforeCheck: beforeCheck, onCheck: onCheck } }; var zNodes =[ { id:1, pId:0, name:"随意勾选 1", open:true}, { id:11, pId:1, name:"随意勾选 1-1"}, { id:12, pId:1, name:"随意勾选 1-2", open:true}, { id:121, pId:12, name:"随意勾选 1-2-1"}, { id:122, pId:12, name:"随意勾选 1-2-2"}, { id:2, pId:0, name:"禁止勾选 2", open:true, doCheck:false}, { id:21, pId:2, name:"禁止勾选 2-1", doCheck:false}, { id:22, pId:2, name:"禁止勾选 2-2", checked:true, open:true, doCheck:false}, { id:221, pId:22, name:"禁止勾选 2-2-1", doCheck:false}, { id:222, pId:22, name:"禁止勾选 2-2-2", checked:true, doCheck:false}, { id:23, pId:2, name:"禁止勾选 2-3", doCheck:false} ]; var code, log, className = "dark"; function beforeCheck(treeId, treeNode) { className = (className === "dark" ? "":"dark"); showLog("[ "+getTime()+" beforeCheck ] " + treeNode.name ); return (treeNode.doCheck !== false); } function onCheck(e, treeId, treeNode) { showLog("[ "+getTime()+" onCheck ] " + treeNode.name ); } function showLog(str) { if (!log) log = $("#log"); log.append("<li class='"+className+"'>"+str+"</li>"); if(log.children("li").length > 6) { log.get(0).removeChild(log.children("li")[0]); } } function getTime() { var now= new Date(), h=now.getHours(), m=now.getMinutes(), s=now.getSeconds(), ms=now.getMilliseconds(); return (h+":"+m+":"+s+ " " +ms); } function checkNode(e) { var zTree = $.fn.zTree.getZTreeObj("treeDemo"), type = e.data.type, nodes = zTree.getSelectedNodes(); if (type.indexOf("All")<0 && nodes.length == 0) { alert("请先选择一个节点"); } if (type == "checkAllTrue") { zTree.checkAllNodes(true); } else if (type == "checkAllFalse") { zTree.checkAllNodes(false); } else { var callbackFlag = $("#callbackTrigger").attr("checked"); for (var i=0, l=nodes.length; i<l; i++) { if (type == "checkTrue") { zTree.checkNode(nodes[i], true, false, callbackFlag); } else if (type == "checkFalse") { zTree.checkNode(nodes[i], false, false, callbackFlag); } else if (type == "toggle") { zTree.checkNode(nodes[i], null, false, callbackFlag); }else if (type == "checkTruePS") { zTree.checkNode(nodes[i], true, true, callbackFlag); } else if (type == "checkFalsePS") { zTree.checkNode(nodes[i], false, true, callbackFlag); } else if (type == "togglePS") { zTree.checkNode(nodes[i], null, true, callbackFlag); } } } } function setAutoTrigger(e) { var zTree = $.fn.zTree.getZTreeObj("treeDemo"); zTree.setting.check.autoCheckTrigger = $("#autoCallbackTrigger").attr("checked"); $("#autoCheckTriggerValue").html(zTree.setting.check.autoCheckTrigger ? "true" : "false"); } $(document).ready(function(){ $.fn.zTree.init($("#treeDemo"), setting, zNodes); $("#checkTrue").bind("click", {type:"checkTrue"}, checkNode); $("#checkFalse").bind("click", {type:"checkFalse"}, checkNode); $("#toggle").bind("click", {type:"toggle"}, checkNode); $("#checkTruePS").bind("click", {type:"checkTruePS"}, checkNode); $("#checkFalsePS").bind("click", {type:"checkFalsePS"}, checkNode); $("#togglePS").bind("click", {type:"togglePS"}, checkNode); $("#checkAllTrue").bind("click", {type:"checkAllTrue"}, checkNode); $("#checkAllFalse").bind("click", {type:"checkAllFalse"}, checkNode); $("#autoCallbackTrigger").bind("change", {}, setAutoTrigger); }); //--> </SCRIPT> </HEAD> <BODY> <h1>用 zTree 方法 勾选 checkbox</h1> <h6>[ 文件路径: excheck/checkbox_fun.html ]</h6> <div class="content_wrap"> <div class="zTreeDemoBackground left"> <ul id="treeDemo" class="ztree"></ul> </div> <div class="right"> <ul class="info"> <li class="title"><h2>1、beforeCheck / onCheck 事件回调函数控制</h2> <ul class="list"> <li>利用 beforeCheck / onCheck 事件回调函数 可以控制是否允许 更改 节点勾选状态，这里简单演示如何监控此事件</li> <li><p>这里还演示了 checkNode / checkAllNodes 方法触发 beforeCheck / onCheck 事件回调函数的情况，试试看：<br/> <input type="checkbox" id="autoCallbackTrigger" /> setting.check.autoCheckTrigger: <span id="autoCheckTriggerValue">false</span><br/> <input type="checkbox" id="callbackTrigger" checked /> 执行勾选方法是否触发 callback <br/> 单节点--[ <a id="checkTrue" href="#" title="不想勾选我就不勾选你..." onclick="return false;">勾选</a> ] [ <a id="checkFalse" href="#" title="不想取消勾选我就不取消你..." onclick="return false;">取消勾选</a> ] [ <a id="toggle" href="#" title="你想怎样？..." onclick="return false;">勾选 切换</a> ]<br/> 单节点 ( 影响父子 )--[ <a id="checkTruePS" href="#" title="不想勾选我就不勾选你..." onclick="return false;">勾选</a> ] [ <a id="checkFalsePS" href="#" title="不想取消勾选我就不取消你..." onclick="return false;">取消勾选</a> ] [ <a id="togglePS" href="#" title="你想怎样？..." onclick="return false;">勾选 切换</a> ]<br/> 全部节点--[ <a id="checkAllTrue" href="#" title="不管你有多NB，统统都要听我的！！" onclick="return false;">勾选</a> ] [ <a id="checkAllFalse" href="#" title="不管你有多NB，统统都要听我的！！" onclick="return false;">取消勾选</a> ]</p> </li> <li><p><span class="highlight_red">使用 zTreeObj.checkNode / checkAllNodes 方法，详细请参见 API 文档中的相关内容</span><br/> beforeCheck / onCheck log:<br/> <ul id="log" class="log" style="height:130px;"></ul></p> </li> </ul> </li> <li class="title"><h2>2、setting 配置信息说明</h2> <ul class="list"> <li>同 "checkbox 勾选操作" 中的说明</li> </ul> </li> <li class="title"><h2>3、treeNode 节点数据说明</h2> <ul class="list"> <li>同 "checkbox 勾选操作" 中的说明</li> </ul> </li> </ul> </div> </div> </BODY> </HTML>
