基于cookie实现zTree树刷新后展开状态不变

基于cookie实现zTree树刷新后展开状态不变

基于cookie实现zTree树刷新后，展开状态不变。

1、除了引用jquery和zTree的js外，引用cookie的JS：

2、JS代码：

$(function () {

//ztree设置

var setting = {

data: {

simpleData: {

enable: true,

idKey: "id",

pIdKey: "pId",

rootPId: null

}

},

callback: {

onExpand: onExpand,

onCollapse: onCollapse

}

};

$.ajax({

type: "POST",

url: "/Tech/TemplateTypeManage/GetData",

success: function (data) {

if (data && data.length != 0) {

$.fn.zTree.init($("#tree"), setting, data);

var treeObj = $.fn.zTree.getZTreeObj("tree");

var cookie = $.cookie("z_tree" + window.location);

if (cookie) {

z_tree = JSON2.parse(cookie);

for (var i = 0; i < z_tree.length; i++) {

var node = treeObj.getNodeByParam('id', z_tree[i])

treeObj.expandNode(node, true, false)

}

}

}

}

});

});//end $

function onExpand(event, treeId, treeNode) {

var cookie = $.cookie("z_tree" + window.location);

var z_tree = new Array();

if (cookie) {

z_tree = JSON2.parse(cookie);

}

if ($.inArray(treeNode.id, z_tree) < 0) {

z_tree.push(treeNode.id);

}

$.cookie("http://z_tree" + window.location, JSON2.stringify(z_tree))

}

function onCollapse(event, treeId, treeNode) {

var cookie = $.cookie("z_tree" + window.location);

var z_tree = new Array();

if (cookie) {

z_tree = JSON2.parse(cookie);

}

var indhttp://ex = $.inArray(treeNode.id, z_tree);

z_tree.splice(index, 1);

for (var i = 0; i < treeNode.children.length; i++) {

index = $.inArray(treeNode.children[i].id, z_tree);

if (index > -1) z_tree.splice(index, 1);

}

$.cookie("z_tree" + window.location, JSON2.stringify(z_tree))

}

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