Question

So, if i have:

public class Sedan : Car  {     /// ... }  public class Car : Vehicle, ITurn {     [MyCustomAttribute(1)]     public int TurningRadius { get; set; } }  public abstract class Vehicle : ITurn {     [MyCustomAttribute(2)]     public int TurningRadius { get; set; } }  public interface ITurn {     [MyCustomAttribute(3)]     int TurningRadius { get; set; } } 

What magic can I use to do something like:

[Test] public void Should_Use_Magic_To_Get_CustomAttributes_From_Ancestry() {     var property = typeof(Sedan).GetProperty('TurningRadius');      var attributes = SomeMagic(property);      Assert.AreEqual(attributes.Count, 3); } 

---

Both

property.GetCustomAttributes(true); 

And

Attribute.GetCustomAttributes(property, true); 

Only return 1 attribute. The instance is the one built with MyCustomAttribute(1). This doesn’t seem to work as expected.

Answer 1

this is a framework issue. Interface attributes are ignored by GetCustomAttributes. see the comment on this blog post http://hyperthink.net/blog/getcustomattributes-gotcha/#comment-65