System.ValueType.ToString C# (CSharp) Méthode

        public override String ToString() {
            return this.GetType().ToString();
        }
    }

        static void PatternMatchingSwitch(System.ValueType val)
        {
            switch (val)
            {
            case int number:
                Console.WriteLine(number);
                break;

            case long number:
                Console.WriteLine(number);
                break;

            case decimal number:
                Console.WriteLine(number);
                break;

            case float number:
                Console.WriteLine(number);
                break;

            case double number:
                Console.WriteLine(number);
                break;

            case null:
                Console.WriteLine("val is a nullable type with the null value");
                break;

            default:
                Console.WriteLine("Could not convert " + val.ToString());
                break;
            }
        }