Use reflection to get attribute of a property via method called from the setter

Question

Note: This is a follow-up to an answer on a previous question.

I\'m decorating a property\'s setter with an Attribute called TestMaxStringLength

Answer 1

As far as I know, there's no way to get a PropertyInfo from a MethodInfo of one of its setters. Though, of course, you could use some string hacks, like using the name for the lookup, and such. I'm thinking something like:

var method = new StackTrace().GetFrame(1).GetMethod();
var propName = method.Name.Remove(0, 4); // remove get_ / set_
var property = method.DeclaringType.GetProperty(propName);
var attribs = property.GetCustomAttributes(typeof(TestMaxStringLength), true);

Needless to say, though, that's not exactly performant.

Also, be careful with the StackTrace class - it's a performance hog, too, when used too often.