ASP.NET MVC 2中的动态范围验证

好的,找到答案了。.NET Framework 4提供了一个新的CustomValidationAttribute,使以下各项成为可能:

[Required]
[DisplayName("Ideal Delivery Date")]
[CustomValidation(typeof(HeaderViewModel), "ValidateDeliveryDate")]
public DateTime DeliveryDate { get; set; }

public static ValidationResult ValidateDeliveryDate(DateTime deliveryDateToValidate)
{
    if (deliveryDateToValidate.Date < DateTime.Today)
    {
    return new ValidationResult("Delivery Date cannot be in the past.");
    }

    if (deliveryDateToValidate.Date > DateTime.Today.AddYears(1))
    {
    return new ValidationResult("Delivery Date must be within the next year.");
    }

    return ValidationResult.Success;
}

http://msdn.microsoft.com/en-us/library/system.componentmodel.dataannotations.customvalidationattribute%28VS.100%29.aspx

您需要创建自己的属性或使用基于无属性的验证框架。正如消息所说,任何属性的所有参数都必须是常量值。