public bool commitInsert(DateTime _waittime,DateTime _checkedin)
    {
        ERwaitClassDataContext objERDC = new ERwaitClassDataContext();
        using (objERDC)
        {
            ER_waittime objnewWaittime = new ER_waittime();
            objnewWaittime.wait_time = _waittime.TimeOfDay;
            objnewWaittime.checked_in = _checkedin;
         
           

            objERDC.ER_waittimes.InsertOnSubmit(objnewWaittime);
            objERDC.SubmitChanges();
            return true;
        }
    }
 partial void UpdateER_waittime(ER_waittime instance);
 partial void DeleteER_waittime(ER_waittime instance);
 partial void InsertER_waittime(ER_waittime instance);