public T_SYS_PERMISSION GetSysPermissionByID(string perID)
        {
            using (SysPermissionBLL bll = new SysPermissionBLL())
            {
                #region 
                T_SYS_PERMISSION perList;
                string keyString = "GetSysPermissionByID" + perID;
                if (WCFCache.Current[keyString] == null)
                {

                    perList = bll.GetSysPermissionByID(perID);
                    WCFCache.Current.Insert(keyString, perList, DateTime.Now.AddMinutes(15));

                }
                else
                {
                    perList = (T_SYS_PERMISSION)WCFCache.Current[keyString];
                }
                return perList;
                #endregion
            }
        }