internal static string ValidateBirthday(DateTime?bdayValue) { if (StringValidation.IsDateTimeMissing(bdayValue)) { return(null); } else if (!StringValidation.IsBirthday(bdayValue)) { return(Resources.Error_Invalid_Birthday); } return(null); }
private string ValidateEndTime() { if (StringValidation.IsDateTimeMissing(EndTime)) { return("End Time" + Resources.Error_Missing_Required_Field); } else if (!StringValidation.IsDateTimeMissing(StartTime) && StringValidation.IsATimeBiggerThanBTime(StartTime, EndTime)) { return(Resources.Error_iCal_StartTime_Bigger); } return(null); }