private void RemoveStandard()
        {
            Console.WriteLine("--- Remove Standard ---");

            Console.WriteLine("Enter Standard ID to remove: ");
            InputID();
            newStd = bl.GetStandardByID(id);

            if (newStd == null)
            {
                Console.WriteLine("Standard not found!");
                return;
            }
            else
            {
                bl.RemoveStandard(newStd);
                Console.WriteLine("Standard has been removed!");
            }

            Continue();
        }