public override ValidationResult Validate(object value, CultureInfo cultureInfo)
{
IValidateable entry = (value as BindingGroup).Items[0] as IValidateable;
if (entry == null)
{
return(ValidationResult.ValidResult);
}
string error = entry.ValidateAndGetError();
if (string.IsNullOrEmpty(error))
{
return(ValidationResult.ValidResult);
}
return(new ValidationResult(false, error));
}