.NET Framework Standard Library Annotated Reference, Volume 1: Base Class Library and Extended Numerics Library

Example

For brevity, the program only checks for the existence of one custom attribute, but for completeness attributes are applied to most targets in the source code.

 using System; using System.Reflection; [assembly: Samples.MyCustom] [module: Samples.MyCustom] namespace Samples { [AttributeUsage(AttributeTargets.All, AllowMultiple = false, Inherited = false)] public class MyCustomAttribute: Attribute {} public class Foo {} public interface IFoo { [MyCustom] int age { get;} } [MyCustom] public struct Bar {} [MyCustom] public class AttributeUsageSample { [MyCustom] enum Color {black, white} [MyCustom] public delegate int D(); [MyCustom] public event D MyD; [MyCustom] private int i; [MyCustom] public static void Main() { Assembly e = Assembly.GetExecutingAssembly(); ...