[SOLVED] Validate age by date of birth using Enterprise Library Validation Application Block

Validate age by date of birth using Enterprise Library Validation Application Block

I have the following situation: A domain model that has a property BithDay. I want to be able to verify that the age (that will be computed accordingally to the birthday) is lower than 150 years. Can I do that by using the built in validtors or I have to build my own? Can someoane provide me an example of DomainValidator?

Solution

You can use a RelativeDateTimeValidator to validate an age based on a Birth Date. For example:

public class Person
{
    [RelativeDateTimeValidator(-150, DateTimeUnit.Year, RangeBoundaryType.Inclusive, 
        0, DateTimeUnit.Year, RangeBoundaryType.Ignore,
        MessageTemplate="Person must be less than 150 years old.")]
    public DateTime BirthDate
    {
        get;
        set;
    }
}

// 150 Year old person
Person p = new Person() { BirthDate = DateTime.Now.AddYears(-150) };

var validator = ValidationFactory.CreateValidator<Person>();
ValidationResults vrs = validator.Validate(p);

foreach (ValidationResult vr in vrs)
{
    Console.WriteLine(vr.Message);
}

This will print: "Person must be less than 150 years old."