} //GetStudentsByClassA() public int?AddSchedulesHeader(int classId, int teacherId, DateTime classDate, string startTime, string endTime, string status, string comment) { int?newId = 0; hasError = false; try { DataClasses1DataContext dc = new DataClasses1DataContext(); dc.AddSchedulesHeader(classId, teacherId, classDate, startTime, endTime, status, comment, ref newId); } catch (Exception ex) { errorMessage = "Add error, " + ex.Message; hasError = true; log.Error("In StoreDB..AddSchedulesHeader: " + ex.StackTrace); } return(newId); } //AddSchedulesHeader