Is there a generic system delegate that takes 2 types and returns the second

I am looking for something like Action but I want it to be

delegate U ReturnAction<T,U>(T param);

Is there already a system delegate for this? I just don't want to reinvent the wheel. I did the same thing when I first needed a Predicate and then realized it existed.

From stackoverflow

• i think you need

  Func<T, TRet>
  

  It has various overloads

  Func<TRet>
  Func<T, TRet>
  Func<T1, T2, TRet>
  Func<T1, T2, T3, TRet>
  

  DevelopingChris : wow, I'm getting old, thats exactly what I wanted. I knew it existed but had a total brainfart.

  Jhonny D. Cano -Leftware- : jejej that was an easy one !!

• Take a look at Func

  delegate TReturn Func<T1,TReturn>(T1 arg1);
  

  The 3.5 framework contains several overloads of func. From 0 to 4 arguments are defined.