using System;

​

public class Program

{

    static MyClass c1;

    public static void Main()

    {

        c1 = new MyClass();

        DoSomething1("Test1");

        DoSomething2("Test2");

        DoSomething3("Test3");

        DoSomething(c1.Method1, "Test4"); //Generic way Answer came from Aluan https://dotnetfiddle.net/7CQBLL

        DoSomethingX(() => c1.Method2("HelloWorld"));

        //Rework https://dotnetfiddle.net/DHVSq7

    }

​

    static int DoSomething1(string id)

    {

        var x = c1.Method1(id);

        return x;

    }

​

    static int DoSomething2(string id)

    {

        var x = c1.Method2(id);

        return x;

    }

​

    static int DoSomething3(string id)

    {

        var x = c1.Method3(id);

        return x;

    }

​

    static T DoSomething<T>(Func<string, T> f, string id)

    {

        var x = f(id);

        return x;

    }

​

    static T DoSomethingX<T>(Func<T> f)

    {

        return f();

    }

}

​

public class MyClass

{

    public int Method1(string id)

    {

        Console.WriteLine("Method 1 Do Work - {0}", id);

        return 1;

    }

​

    public int Method2(string id)

    {

        Console.WriteLine("Method 2 Do Work - {0}", id);

        return 1;

    }

​

    public int Method3(string id)

    {

        Console.WriteLine("Method 3 Do Work - {0}", id);

        return 1;

    }

}