delegate string DelegateTest(string testString); // setup delegate with its signature.
 
        DelegateTest ma; // create instance of delegate
 
//--------------------------------------------------------Methods to run with same signatures
        static string DelTest1(string input)
        {
            return input + "---";
        }
//----------------------------------------------
        static string DelTest2(string input)
        {
            string modifiedString = input.Substring(7, input.Length - 7);
 
            modifiedString += "--- This would be awesome if this works";
 
            return modifiedString;
        }
//-------------------------------------------------------------------
 
        public void setUpMethod(string test)  // Setup to start things----Optional
        {
            ma = DelTest1;  // Assign delegate to a method.
 
            Console.WriteLine(ma(test)); // Run delegate method
            Console.ReadLine();
 
            ma = DelTest2;  // Reassign delegate to another method.
 
            Console.WriteLine(ma(test)); // Run delegate using another method.
            Console.ReadLine();
        }
 
        setUpMethod("testing123");
 
 
OUTPUT:
testing123---
123--- This would be awesome if this works
============================================================================================
The alternate to this is to use a Func<T>.
 
Func<string, string> ma = DelTest1; // put this inside of setUpMethod.
With this you don't have to instantiate a delegate object or setup the delegate.  The first string in this example is the input(you can have up to 15 separated by comma).  The second string is the output, what is returned.
 
============================================================================================
 
Action<T> is a Func<T> without the return.
 
Action<string> write = x => Console.WriteLine(x);
write("This is a test and only a test);