public static string IsValid(DateTime?earlierDate, DateTime?laterDate)
{
string isValid = DateComesBeforeHelper.IsValid(laterDate, earlierDate);
if (isValid != null)
{
isValid = isValid.Replace("cannot precede", "cannot be after");
}
return(isValid);
}
protected override string IsValidCore(DateTime?toCheck, DateTime?toCompare)
{
string validationResult = DateComesBeforeHelper.IsValid(toCheck, toCompare);
if (string.IsNullOrEmpty(validationResult))
{
return(Success());
}
return(validationResult);
}
public static string IsValid(DateTime?earlierDate, DateTime?laterDate)
{
string isValid = DateComesBeforeHelper.IsValid(earlierDate, laterDate);
if (string.IsNullOrEmpty(isValid))
{
return(isValid);
}
if (isValid.StartsWith("Time on"))
{
return("{0} cannot precede {1}");
}
return(isValid);
}