zTree自動點擊第一個節點

var setting = {
    view: {
        dblClickExpand: true,//雙擊展開
        showLayer: false,
        selectedMulti: false,//是否允許多選
        showIcon: showIconForTree//顯示節點小圖標
    },
    data: {
        simpleData: {
            enable: true,
            idKey: "id",
            pIdKey: "pId",
            rootPId: "0"
        }
    },
    callback: {
        beforeClick: beforeClick,
        onClick: onClick
    }
};
//加載當前項目的樹形結構信息列表
function loadStructureInfoTreeJson(projectId) {
    $.ajax({
        type: "POST",
        dataType: "json",
        url: "../Tools/StructureModel.ashx",
        data: { act: "LoadModelTreeByProjectid",
            pid: projectId
        },
        success: function (data) {
            if (data.length == 0) {
            } else {
                $.fn.zTree.init($("#tree"), setting, data);
                var zTree = $.fn.zTree.getZTreeObj("tree");//獲取ztree對象
                var node = zTree.getNodeByParam('id', 1);//獲取id爲1的點
                zTree.selectNode(node);//選擇點
                zTree.setting.callback.onClick(null, zTree.setting.treeId, node);//調用事件
            }
        },
        error: function () {
            alert("載入樹形結構出現問題！");
        }
    });
}

function showIconForTree(treeId, treeNode) {
    return treeNode.isParent;//如果是父節點就顯示小圖標
};