Convert.ToInt64, méthode (UInt32)

uint[] numbers = { UInt32.MinValue, 121, 340, UInt32.MaxValue };
long result;
foreach (uint number in numbers)
{
   try {
      result = Convert.ToInt64(number);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the Int64 type.",
                        number.GetType().Name, number);
   }
}
// The example displays the following output:
//    Converted the UInt32 value 0 to the Int64 value 0.
//    Converted the UInt32 value 121 to the Int64 value 121.
//    Converted the UInt32 value 340 to the Int64 value 340.
//    The UInt32 value 4294967295 is outside the range of the Int64 type.