zTree（五）异步加载并展开第一项

异步配置项

async: {    enable: true,    url: ip + "mgmt/getOrg.do",    autoParam: ["orgCode"],//异步加载时需要自动提交父节点属性的参数    dataFilter: ajaxDataFilter//用于对 Ajax 返回数据进行预处理的函数。},var zTree;$(function () {    $.fn.zTree.init($("#treeOrg"), setting1, null);})//这些方法看看就好，这是我项目中写的，我不想改所以就全放来了function ajaxDataFilter(treeId, parentNode, responseData) {    // console.log(responseData)    if (responseData.retCode == 0) {        // console.log(responseData.orgList)        var orgList = getOrgList(responseData.orgList)        return orgList;    }};function getOrgList(orgList) {    // console.log(orgList)    if (orgList.length > 0) {        setOrgCode(orgList[0].orgCode, orgList[0].orgName, orgList[0].sortKey);    } else {        setOrgCode('1', 'Root', '1000000')    }    orgList = sortOrg(orgList)    // var orgList1 = sortOrg(orgList)    // console.log(orgList1)    var rootOrg = {        orgCode: '1',        parentCode: null,        orgName: 'Root'    }    orgList.push(rootOrg);    for (var i = 0, l = orgList.length; i < l; i++) {        if (orgList[i].termNum !== 0 && orgList[i].termNum) {            orgList[i].name = orgList[i].orgName + ' [' +                orgList[                    i].termNum + ']'        } else {            orgList[i].name = orgList[i].orgName        }    }    // console.log(orgList)    return orgList;}

异步加载完成后展开第一项

function zTreeOnAsyncSuccess(event, treeId, treeNode, msg) {   zTree = $.fn.zTree.getZTreeObj("treeOrg");    expand()};function expand() {    var nodes = zTree.getNodes();    // console.log(nodes)    if (nodes[0].children[0]) {        zTree.selectNode(nodes[0].children[0]);    } else {        zTree.selectNode(nodes[0])    }    setting1.callback.onClick = zTreeOnClickOrg;    // console.log(nodes)    if (nodes.length > 0) {        // console.log(nodes)        zTree.expandNode(nodes[0], true, false);    }}