Run a method before all methods of a class

Question

Is it possible to do that in C# 3 or 4? Maybe with some reflection?

class Magic
{

    [RunBeforeAll]
    public void BaseMethod()
    {
    }

    //runs Ba         


        

Answer 1

I know it won't answer the question directly. But it's a good approach to use a decorator pattern to solve this problem to make your implementation stay clean.

Create an interface

public interface IMagic
{


    public void Method1()
    {
    }


    public void Method2()
    {
    }
}

Create implementation

public class Magic : IMagic
{

    public void Method1()
    {
    }


    public void Method2()
    {
    }
}

Create Decorator

public class MagicDecorator : IMagic
{
   private IMagic _magic;
   public MagicDecorator(IMagic magic)
   {
       _magic = magic;
   }

   private void BaseMethod()
   {
       // do something important
   }

    public void Method1()
    {
         BaseMethod();
         _magic.Method1();
    }


    public void Method2()
    {
        BaseMethod();
        _magic.Method2();
    }
}

Usage

var magic = new MagicDecorator(new Magic());
magic.Method1();
magic.Method2();