一、当某节点被选择或被取消选择时获取所有被选择的节点：
<link rel="stylesheet" href="./static/libs/ztree/css/metroStyle/metroStyle.css" type="text/css"><!-- ztree -->
<script src="./static/libs/ztree/js/jquery.ztree.core-3.5.js"></script><!-- ztree -->
<script src="./static/libs/ztree/js/jquery.ztree.exedit.js"></script><!-- ztree -->
<script src="./static/libs/ztree/js/jquery.ztree.excheck-3.5.js"></script><!-- ztree -->
<script src="./static/libs/ztree/js/jquery.ztree.exhide-3.5.js"></script><!-- ztree -->
<style>
ul.ztree {border: 0 solid #617775;background: #ffffff;width:100%;height:100%;overflow-y:hidden;overflow-x:hidden;}
</style>
<ul id="treeDemo" class="ztree"></ul>
var setting = {
check: {
enable: true,
chkboxType: {
"Y": "ps",
"N": "ps"
}//设置子父关联关系
},
data: {
simpleData: {
enable: true
}
},
callback: {
beforeClick: beforeClick,
onCheck: onCheck
}
};
function beforeClick(treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
zTree.checkNode(treeNode, !treeNode.checked, null, true);
return true;//此处一定设置为true，否则当取消选择时，onCheck函数不会起作用
}
function onCheck(e, treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
nodes = zTree.getCheckedNodes(true),
v = "";
for (var i=0, l=nodes.length; i<l; i++) {
if(nodes[i].isParent){
}else{
v += nodes[i].name + ",";//name为获取节点名称 ，id为获取id，pId为获取pId
}
}
if (v.length > 0 ) {
v = v.substring(0, v.length-1);
}
alert(v);
}
var zNodes =[
{ id:1, pId:0, name:"根部门", open:true},
{ id:11, pId:1, name:"一级部门1", open:true},
{ id:111, pId:11, name:"一级部门1子部门1"},
{ id:112, pId:11, name:"一级部门1子部门2"},
{ id:12, pId:1, name:"一级部门2", open:true},
{ id:121, pId:12, name:"一级部门2子部门1"},
{ id:122, pId:12, name:"一级部门2子部门2"}
];
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
二、点击获取当前节点值：
var setting = {
data: {
simpleData: {
enable: true
}
},
callback: {
onClick: onClick
}
};
function onClick(event, treeId, treeNode) {
alert(treeNode.id + ", " + treeNode.name);
//你的ajax代码
}
var zNodes =[
{ id:1, pId:0, name:"普通的父节点", t:"我很普通，随便点我吧", open:true},
{ id:11, pId:1, name:"叶子节点 - 1", t:"我很普通，随便点我吧"},
{ id:12, pId:1, name:"叶子节点 - 2", t:"我很普通，随便点我吧"},
{ id:13, pId:1, name:"叶子节点 - 3", t:"我很普通，随便点我吧"},
{ id:2, pId:0, name:"NB的父节点", t:"点我可以，但是不能点我的子节点，有本事点一个你试试看？", open:true},
{ id:21, pId:2, name:"叶子节点2 - 1", t:"你哪个单位的？敢随便点我？小心点儿..", click:false},
{ id:22, pId:2, name:"叶子节点2 - 2", t:"我有老爸罩着呢，点击我的小心点儿..", click:false},
{ id:23, pId:2, name:"叶子节点2 - 3", t:"好歹我也是个领导，别普通群众就来点击我..", click:false},
{ id:3, pId:0, name:"郁闷的父节点", t:"别点我，我好害怕...我的子节点随便点吧...", open:true, click:false },
{ id:31, pId:3, name:"叶子节点3 - 1", t:"唉，随便点我吧"},
{ id:32, pId:3, name:"叶子节点3 - 2", t:"唉，随便点我吧"},
{ id:33, pId:3, name:"叶子节点3 - 3", t:"唉，随便点我吧"}
];
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
三、获取第一个父节点的第一个子节点 ：
var zTree = $.fn.zTree.getZTreeObj("treeDemo");
console.log(zTree.getNodes()[0].children[0]);
四、获取所有节点：
一般情况下，通过zTree官方API的方法获取得到的是一个包含所有子节点的根节点（子节点都处于 children 属性下）
var treeObj = $.fn.zTree.getZTreeObj(“tree");
var nodes = treeObj.getNodes();
当我们需要一次获取所有树节点的时候，有两种方法：
一种是通过递归的方式（此处就不提及了）。
另一种就是通过zTreet提供的方法：
var treeObj = $.fn.zTree.getZTreeObj(”tree“);
var node = treeObj.getNodes();
var nodes = treeObj.transformToArray(node);
这种方法得到的就是整颗树的所有节点集合了。
五、取消节点选择：
var treeId = $.fn.zTree.getZTreeObj("#tree-id");
treeId.checkAllNodes(false);
treeId.cancelSelectedNode();
六、设置下拉树：
下拉树html：
<div class="form-group">
<label class="col-lg-4 col-md-4 col-sm-4 control-label font-normal" style="text-align: right;">用户列表：</label>
<div class="col-lg-5 col-md-5 col-sm-5" style="position:relative;z-index:9999999;">
<input type="text" class="form-control" name="addUserModalUsers" id="add-user-modal-users" onfocus="this.blur();" onclick="showMenu();"/>
<!--onfocus="this.blur();" 是为了禁止用户输入-->
<div id="add-user-modal-users-content" style="display:none; position: absolute; width: 100%;">
<ul id="add-user-modal-users-tree" class="ztree" style="width: 100%;height: 200px; overflow: auto;border: 1px solid #e2e2e2;box-shadow: 0 0 10px #ccc;"></ul>
</div>
</div>
</div>
下拉树设置：
/**
* 增加用户下拉树
*/
var UsersTreeSetting = {
check : {
enable : true,
chkboxType : {
"Y" : "ps",
"N" : "ps"
}
},
view : {
dblClickExpand : false
},
data : {
simpleData : {
enable : true
}
},
callback : {
beforeClick : function(treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("add-user-modal-users-tree");
zTree.checkNode(treeNode, !treeNode.checked, null, true);
return true;
},
onCheck : function(e, treeId, treeNode) {
var zTree = $.fn.zTree.getZTreeObj("add-user-modal-users-tree"),
nodes = zTree.getCheckedNodes(true),
v = "";
for (var i = 0, l = nodes.length; i < l; i++) {
if (nodes[i].isParent) {
} else {
v += nodes[i].name + ",";//只获取最末端节点的值
}
}
if (v.length >= 0){
v = v.substring(0, v.length - 1);
$("#add-user-modal-users").val(v).change();
}
}
}
};
function showMenu() {
var parentDept = $("#add-user-modal-users");
var parentDeptOffset = $("#add-user-modal-users").offset();
$("#add-user-modal-users-content").css({
right : -10 + "px",
top : (parentDept.outerHeight() + 5) + "px"
}).slideDown("fast");
$("body").bind("mousedown", onBodyDown);
}
function hideMenu() {
$("#add-user-modal-users-content").fadeOut("fast");
$("body").unbind("mousedown", onBodyDown);
}
function onBodyDown(event) {
if (!(event.target.id == "menuBtn"
|| event.target.id == "add-user-modal-users"
|| event.target.id == "add-user-modal-users-content" || $(event.target).parents(
"#add-user-modal-users-content").length > 0)) {
hideMenu();
}
}
通过异步请求获得节点数据：
$.ajax({
type: "GET",
url: 'data/' + 'user' + '.json',
data: {},
dataType: "json",
success: function(data){
$.fn.zTree.init($("#add-user-modal-users-tree"), UsersTreeSetting, data);
var usersTreeObj = $.fn.zTree.getZTreeObj("add-user-modal-users-tree");
usersTreeObj.expandAll(true);
},
error: function(data){
alert("error");
console.log(data);
}
});
七、通过代码设置某一节点样式：
$.fn.zTree.init($("#department-tree"), departmentTreeSetting, data);
var zTree_Menu = $.fn.zTree.getZTreeObj("department-tree");
var curMenu = zTree_Menu.getNodes()[0];
zTree_Menu.selectNode(curMenu);
var a = $("#" + zTree_Menu.getNodes()[0].tId + "_a");
a.addClass("cur");