Question

Is it possible to use some kind of attribute to throw an exception. This is what I mean. Instead of doing this:

public int Age
{
    get
    {
        return this.age;
    }

    set
    {
        this.age = value;
        NotifyPropertyChanged("Age");

        if (value < 18)
        {
            throw new Exception("age < 18");
        }

    }
}

Do something like this:

[Range(18,100, ErrorMessage="Must be older than 18")]
public int Age
{
    get
    {
        return this.age;
    }

    set
    {
        this.age = value;
        NotifyPropertyChanged("Age");
    }
}

Any help would be greatly appreciated!

Best Regards,
Kiril

Answer 1

You’re looking for an AOP (Aspect Oriented Programming) library, which can do this quite easily. I would recommend giving PostSharp a try. The example on the home page should give an indication how you might use it on a property/method.