<!DOCTYPE html>
<HTML>
<HEAD>
<TITLE> ZTREE DEMO - beforeCheck / onCheck</TITLE>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="../js/jquery-3.3.1.js"></script>
<link rel="stylesheet" href="../bower_components/ztree/css/zTreeStyle/zTreeStyle.css" type="text/css">
<link rel="stylesheet" href="../bower_components/ztree/css/zTreeStyle/demo.css" type="text/css">
<script type="text/javascript" src="../bower_components/ztree/js/jquery.ztree.core-3.5.js"></script>
<script type="text/javascript" src="../bower_components/ztree/js/jquery.ztree.excheck-3.5.js"></script>
<SCRIPT type="text/javascript">
var setting = {
view: {
selectedMulti: false
},
check: {
enable: true
},
data: {
simpleData: {
enable: true
}
},
callback: {
beforeCheck: beforeCheck,
onCheck: onCheck
}
};
var nodes =[
{ 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 log;
function beforeCheck(treeId, treeNode) {
showLog(treeNode.name + "(选择前)");
return (treeNode.doCheck !== false);
}
function onCheck(e, treeId, treeNode) {
showLog(treeNode.name + "(选择后)");
}
function showLog(str) {
if (!log) log = $("#log");
log.append("<li>"+str+"</li>");
if(log.children("li").length > 6) { //设置内容超过6条后便删除刚开始的内容
log.get(0).removeChild(log.children("li")[0]);
}
}
function checkNode(e) {
var zTree = $.fn.zTree.getZTreeObj("sys"),
type = e.data.type, //用到下文定义的 data.type 属性
nodes = zTree.getSelectedNodes(); //得到选中的结点
if (type.indexOf("All")<0 && nodes.length == 0) { //如果不包括查到的结点并且不是全部的时候，提示
alert("请先选择一个节点");
}
if (type == "checkAllTrue") {
zTree.checkAllNodes(true); //勾选 或 取消勾选 全部节点,此方法不会触发 beforeCheck / onCheck 事件回调函数。
} else if (type == "checkAllFalse") {
zTree.checkAllNodes(false);
} else {
var callbackFlag = $("#callbackTrigger").attr("checked"); //初始化callbackTrigger按扭选中状态
for (var i=0, l=nodes.length; i<l; i++) {
if (type == "checkTrue") {
zTree.checkNode(nodes[i], true, false, callbackFlag); //checkNode: 勾选 或 取消勾选 单个节点。可以触发 beforeCheck / onCheck 事件回调函数
//参数1：处理结点 2:是否选中 3:父子结点间是否联动 4:是否触发回调函数
} else if (type == "checkFalse") {
zTree.checkNode(nodes[i], false, false, callbackFlag);
}
}
}
}
$(document).ready(function(){
$.fn.zTree.init($("#sys"), setting, nodes);
$("#checkTrue").bind("click", {type:"checkTrue"}, checkNode); //定义上文用到的e.data.type 中的 type 属性
$("#checkFalse").bind("click", {type:"checkFalse"}, checkNode);
$("#checkAllTrue").bind("click", {type:"checkAllTrue"}, checkNode);
$("#checkAllFalse").bind("click", {type:"checkAllFalse"}, checkNode);
});
</SCRIPT>
</HEAD>
<BODY>
<div class="content_wrap">
<div class="zTreeDemoBackground left">
<ul id="sys" class="ztree"></ul>
</div>
<div class="right">
<ul class="list">
<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/>
<p>
<ul id="log" class="log" style="height:130px;">
</ul>
</p>
</li>
</ul>
</div>
</div>
</BODY>
</HTML>