使用 Attributes 向属性的 set/get 方法添加装饰代码

Question

I don't know if I am asking the impossible or not, I have tried to see what I could find via Google but perhaps I am not expressing what I am looking for in the right search terms. If it is out there please forgive me!

I was hoping to use a Custom Attribute to execute additional code when the set method of a property is executed.

Here is some pseudo code:

public class MyAttribute : System.Attribute{
     AttributedProperty.Get(Property p){
          Console.WriteLine("The value of the Property '{0}' has just been retrieved!", p.Name);
     }
     AttributedProperty.Set(Property p){
          Console.WriteLine("The value of the Property '{0}' has just been set!", p.Name);
     }
}

public class MyClass{
     private string _someProperty;
     [MyAttribute]
     public string SomeProperty{
           get{ return _someProperty;}
           set{ someProperty = value;}
     }

}

Rarely is something as simple as pseudo code so I am prepared to do a bit of work, I just need some direction if I could please :)

Thank you!

Answer 1

Attribute s are not suitable for this manner,they just add meta information on your members and you can read them via Reflection . Instead you can use some thing like Castle.Proxy to have interceptor on your methods and properties.