Question

I have the following code:

Type1 Method1(Type2 p)
{
    try
    {
        return DoSomething(p)
    }
    catch{ExceptionType1}
    {
    }
    catch{ExceptionType2}
    {
    }
    catch{ExceptionType3}
    {
    }
}

Type3 Method2(Type4 p)
{
    try
    {
        return DoSomethingElse(p)
    }
    catch{ExceptionType1}
    {
    }
    catch{ExceptionType2}
    {
    }
    catch{ExceptionType3}
    {
    }
}

How can i refactor this code to have something like:

TResult ExceptionalMethod(Methodx(T)){
    try
    {
        return Methodx(T);
    }
    catch{ExceptionType1}
    {
    }
    catch{ExceptionType2}
    {
    }
    catch{ExceptionType3}
    {
    }
}

Thank you,
Adrya

Answer 1

This would work:

TResult ExceptionalMethod<T, TResult>(Func<T, TResult> methodx, T parameter){
   try
   {
      return methodx(parameter);
   }
   catch(ExceptionType1)
   {
   }
   catch(ExceptionType2)
   {
   }
   catch(ExceptionType3)
   {
   }

   return default(TResult);
}

I do hope you do something useful in those catches.

EDIT
If you don’t have the Func<T, TResult> delegate in your version of the framework, you can easily add it, nothing special to it:

public delegate TResult Func<T, TResult>(T arg);