public static ValidateTarget <TCollection> IsEmptyByEnumeration <TCollection>([ValidatedNotNull] this ValidateTarget <TCollection> target, Func <string> getErrorMessage = null)
where TCollection : IEnumerable
{
if (target.Value == null || CollectionProxy <TCollection> .GetCountByEnumeration(target.Value, 1) != 0)
{
ExceptionFactory.ThrowException(target.Traits.GenericFailureExceptionType, getErrorMessage != null ? getErrorMessage.Invoke() : ErrorMessageFactory.ShouldBeEmpty(target));
}
return(target);
}
public static ValidateTarget <string> IsEmpty([ValidatedNotNull] this ValidateTarget <string> target, Func <string> getErrorMessage = null)
{
if (target.Value == null || target.Value.Length != 0)
{
ExceptionFactory.ThrowException(target.Traits.GenericFailureExceptionType, getErrorMessage != null ? getErrorMessage.Invoke() : ErrorMessageFactory.ShouldBeEmpty(target));
}
return(target);
}