Dictionary<string, ?> dic_Commands;

dic_Commands["Name"] = SetName();

class Program
	{
		static void Main(string[] args)
		{
			var dic_Commands = new Dictionary<string, Action>
			{
				[key: "Test1"] = () => Console.WriteLine(value: "Bla1"), // anonym
				[key: "Test2"] = Test2 // eigene methode
			};

			dic_Commands[key: "Test1"].Invoke();
			dic_Commands[key: "Test2"].Invoke();
			Console.ReadLine();
		}

		private static void Test2()
		{
			Console.WriteLine(value: "Bla2");
		}
	}

Dictionary<string, ICommand> Commands;    [COLOR]  // die ungarische Notation (dic_) habe ich mal weggelassen. das ist nicht mehr so 'in'[/COLOR]
Commands["SetName"] = new DelegateCommand((parameter) => SetName((string) parameter)));
Commands["SetLength"] = new DelegateCommand((parameter) => SetLength((int)parameter), (parameter) => CanSetLength((int)parameter));

Commands["SetName"].Execute("Hans im Glück");

if(Commands["SetLength"].CanExecute(length))
{
   Commands["SetLength"].Execute(length);
}