The Nullable Question

TheNullableQuestion.cs

  // consider the following model
  var person = new {
      Name = "Harry Potter",
      DateOfBirth = DateTime.Now,
      DateOfBirthSpecified = true
  };

  // now if the 'DateOfBirth' is specified, use it's value
  // otherwise, simply use null 	
  DateTime? x = (person.DateOfBirthSpecified) ? person.DateOfBirth : null;

  // solution #1 (set to null by default, and replace it if condition matches)
  DateTime? x = null;
  if (person.DateOfBirthSpecified) x = person.DateOfBirth;

  // solution #2 (notice the cast at the end)
  DateTime? x = (person.DateOfBirthSpecified) ? person.DateOfBirth : (DateTime?)null;