using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public delegate void MyAction(params object[] objArgs);

    public delegate T RetAction<T>(params object[] objArgs);

    static readonly Dictionary<string, MyAction> methodCache;

    public static T RunReturnActions<T>(params RetAction<T>[] actnArgs)

    {

        Console.WriteLine("\nWrapperBefore Ret Action: Begin transaction code\n");

        //Console.WriteLine("Executing -> ", .ToString());

        //actnArgs.ToList().ForEach( actn =>  actn() );

        var itm = actnArgs.FirstOrDefault();

        var ret = itm();

        Console.WriteLine((T)(object)ret);

        Console.WriteLine("\nWrapperAfter: Commit transaction code");

        return  (T)(object)ret ;

    }

    public static void RunActions(params MyAction[] actnArgs)

    {

        Console.WriteLine("\nWrapperBefore: Begin transaction code\n");

        //Console.WriteLine("Executing -> ", .ToString());

        //actnArgs.ToList().ForEach( actn =>  actn() );

        var itm = actnArgs.FirstOrDefault();

        itm();

​

        Console.WriteLine("\nWrapperAfter: Commit transaction code");

    }

​

    //Methods being called

    public static void Hash  (string s, int i, int j)  => Console.WriteLine("   Hash-method call: " + s + "###" + i.ToString() + j.ToString());

    public static string  Slash (int i, string s) {  

        string ret = "   Slash-method call: " + i.ToString()+ @"////" + s;

        //Console.WriteLine(ret);

    return ret;

         //return (T)(object)ret;

    }

    public static int  Count () {  return 20 ;}

​

    //Actual calling code

    static void Main()

    {  

      RunActions( objArgs => Hash("One", 2, 1)   );

        var retValue=   RunReturnActions<string>( objArgs => Slash(3, "four"));

        var retValue1=  RunReturnActions<int>( objArgs => Count());

    }

}