class GroupMember
	{
		public int PrimaryKey;
		public string FirstName;
		public string LastName;
		public long GuestNo;
		public string Notes;

		public GroupMember(int primaryKey, string firstName, string lastName, long guestNo, string notes)
		{
			PrimaryKey = primaryKey;
			FirstName = firstName;
			LastName = lastName;
			GuestNo = guestNo;
			Notes = notes;
		}
		internal void DoWork(MKVP mkvp)
		{
			new Switch()
			   .Case(() => mkvp.Key == "FIRST", delegate {FirstName = mkvp.Value; })
			   .Case(() => mkvp.Key == "LAST", delegate { LastName = mkvp.Value; })
			   .Default(delegate { throw new Exception("No otherwise/default"); })
			   .Execute();
		}
		
	}
	static class Test_Switch
	{
		internal static void Go()
		{
			GroupMember groupMember = new GroupMember(1, "Gregory", "Adam", 234, "none");
			MKVP mkvp = new MKVP("LAST", "Alan");

			groupMember.DoWork(mkvp);

			Console.WriteLine("{0} {1} ", groupMember.FirstName, groupMember.LastName);
		}
	}