ztree treeObj.checkedall(flag) 无效的问题

 var setting = {
    check: {
         enable: true,
        chkboxType: { "Y": "", "N": "" },
        chkDisabledInherit: false,
        chkStyle : "checkbox"
        },
        data: {
            simpleData: {
                enable: true,
                idKey: "DEPTCD",
                pIdKey: "PID",
                rootPId: ""
            },
            key: { name: "DEPTNM" }
        },
        async: {
            enable: true,
            url: '../../Handler/Handler_Dept_B.ashx',
            dataType: "json",
            type: "post"
        },
        callback: {
        onAsyncSuccess: zTreeOnAsyncSuccess ,
        onCheck: zTreeOnCheck
        }
    }
    var treeObj;
    function zTreeOnAsyncSuccess(event, treeId, treeNode, msg) {
          treeObj = $.fn.zTree.getZTreeObj("treeDemo");
          treeObj.expandAll(true);
          //treeObj.checkAllNodes(true);
          InitTree();【NOTICE】【A】
    }
    function zTreeOnCheck(event, treeId, treeNode) {
       var temp = "";
       var arryNodes = treeObj.getCheckedNodes(true); //treeObj.transformToArray();
       for (var v = 0; v < arryNodes.length; v++) {
           temp += "," + arryNodes[v].DEPTCD;
       }
       if (temp == "")
           temp = "''";
       var part1;
       var part2;
       var part3;
       var index1;
       var index2;
       index1 = parent.frames["framePersonlist"].location.href.lastIndexOf('CDS') + 4;
       part1 = parent.frames["framePersonlist"].location.href.substring(0, index1);
       index2 = parent.frames["framePersonlist"].location.href.indexOf('&',index1+1);
       part2 = parent.frames["framePersonlist"].location.href.substring(index1+1,index2)
       part3 = parent.frames["framePersonlist"].location.href.substring(index2);

     
    parent.frames["framePersonlist"].location.href = part1 + $.trim(temp)+part3;
    };

    $(document).ready(function() {
        $.fn.zTree.init($("#treeDemo"), setting);
       $("form").offset({ top: 0 });
        //InitTree();

【NOTICE】【B】

         
    });
    function InitTree() {
     var   treeObj = $.fn.zTree.getZTreeObj("treeDemo");
        var ojecds = "<%=OJBCDS %>";
      //  alert(ojecds);
        var array = ojecds.split(",");
        var node = null;
        for (var i = 0; i < array.length; i++) {
            node = treeObj.getNodeByParam("DEPTCD", array[i], null);
             
            treeObj.checkNode(node, true, false);
            
        }
        
    }

如上面的代码所示：

将initTree()函数放在A处事可以正常执行，若果放在B处就不能够正常的执行甚至出现异常或者报错；

分析：

可能是数据源采用异步加载的方式，整个执行的先后有影响吧；