Get member to which attribute was applied from inside attribute constructor?

Question

I have a custom attribute, inside the constructor of my custom attribute I want to set the value of a property of my attribute to the type of the property my attribute was a

Answer 1

It's possible from .NET 4.5 using CallerMemberName:

[SomethingCustom]
public string MyProperty { get; set; }

Then your attribute:

[AttributeUsage(AttributeTargets.Property)]
public class SomethingCustomAttribute : Attribute
{
    public StartupArgumentAttribute([CallerMemberName] string propName = null)
    {
        // propName = "MyProperty"
    }
}