zTree自动点击第一个节点

var setting = {
    view: {
        dblClickExpand: true,//双击展开
        showLayer: false,
        selectedMulti: false,//是否允许多选
        showIcon: showIconForTree//显示节点小图标
    },
    data: {
        simpleData: {
            enable: true,
            idKey: "id",
            pIdKey: "pId",
            rootPId: "0"
        }
    },
    callback: {
        beforeClick: beforeClick,
        onClick: onClick
    }
};
//加载当前项目的树形结构信息列表
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");//获取ztree对象
                var node = zTree.getNodeByParam('id', 1);//获取id为1的点
                zTree.selectNode(node);//选择点
                zTree.setting.callback.onClick(null, zTree.setting.treeId, node);//调用事件
            }
        },
        error: function () {
            alert("载入树形结构出现问题！");
        }
    });
}

function showIconForTree(treeId, treeNode) {
    return treeNode.isParent;//如果是父节点就显示小图标
};