public override string Validate(string propertyName)
{
if (!DoValidation)
{
return(null);
}
switch (propertyName)
{
case nameof(Login):
if (Login.IsNullOrWhiteSpace())
{
return(string.Format(Constants.FieldMustBeFilledMessageFormat, nameof(Login)));
}
else if (!Login.IsLengthBetween(3, 20))
{
return(string.Format(Constants.LengthErrorMessageFormat, nameof(Login), 3, 20));
}
break;
case nameof(FirstName):
if (FirstName.IsNullOrWhiteSpace())
{
return(string.Format(Constants.FieldMustBeFilledMessageFormat, nameof(FirstName)));
}
else if (!FirstName.IsLengthBetween(3, 20))
{
return(string.Format(Constants.LengthErrorMessageFormat, nameof(FirstName), 3, 20));
}
break;
case nameof(LastName):
if (LastName.IsNullOrWhiteSpace())
{
return(string.Format(Constants.FieldMustBeFilledMessageFormat, nameof(LastName)));
}
else if (!LastName.IsLengthBetween(3, 20))
{
return(string.Format(Constants.LengthErrorMessageFormat, nameof(LastName), 3, 20));
}
break;
case nameof(Position):
if (Position == null)
{
return(string.Format(Constants.FieldMustBeFilledMessageFormat, nameof(Position)));
}
break;
case nameof(Birthday):
if (Birthday.IsNullOrWhiteSpace())
{
return(string.Format(Constants.FieldMustBeFilledMessageFormat, nameof(Birthday)));
}
else if (DateTime.Parse(Birthday) < new DateTime(1900, 1, 1) || DateTime.Parse(Birthday) > new DateTime(2005, 1, 1))
{
return(Constants.DateMustBeCorrectMessage);
}
break;
}
return(null);
}