/// <summary>
        /// 授予用户模块的权限范围
        /// </summary>
        /// <param name="userInfo">用户</param>
        /// <param name="userId">用户主键</param>
        /// <param name="grantModuleId">授予模块主键数组</param>
        /// <param name="permissionCode">权限编号</param>
        /// <returns>影响的行数</returns>
        public string GrantUserModuleScope(BaseUserInfo userInfo, string userId, string grantModuleId, string permissionCode)
        {
            var result = string.Empty;

            var parameter = ServiceInfo.Create(userInfo, MethodBase.GetCurrentMethod());

            ServiceUtil.ProcessUserCenterWriteDb(userInfo, parameter, (dbHelper) =>
            {
                var tableName = userInfo.SystemCode + "PermissionScope";
                var manager   = new BaseUserScopeManager(dbHelper, userInfo, tableName);
                // 小心异常,检查一下参数的有效性
                if (grantModuleId != null)
                {
                    result = manager.GrantModule(userInfo.SystemCode, userId, grantModuleId, permissionCode);
                }
            });
            return(result);
        }