Nullable types??

[Joan M]

Once I met one that was really, really bad... :rolleyes:

[www.tamelectromecanica.com][www.tam.cat]

[Luc Pattyn]

Ian Shlasko wrote:

bool areNullablesGood = ("the month".indexOf('R') >= 0);

That seems pretty close to the truth, as (1) months have at most one capital letter (never an R), (2) and "the month" has none. :)

Luc Pattyn [Forum Guidelines] [My Articles]

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[Dan Neely]

MS access users are violated.

The European Way of War: Blow your own continent up. The American Way of War: Go over and help them.

[Dan Neely]

Don't use them when you don't have to. Every time you call an API expecting a non nullable value you'll have to do validation/conversion of your nullables.

The European Way of War: Blow your own continent up. The American Way of War: Go over and help them.

[Shog9 0]

Bad. But inconsistency is worse. Rather all types be nullable than just a subset...

[Marc Clifton]

Useless, because there's no mapping of a nullable type to an object with value DBNull.Value. Marc

Will work for food. Interacx

I'm not overthinking the problem, I just felt like I needed a small, unimportant, uninteresting rant! - Martin Hart Turner

[Judah Gabriel Himango]

Given that the inventor of null calls it his "billion dollar mistake[^]", I think it's safe to say null references are bad. Or did you mean System.Nullable<T> in the .NET framework?

Religiously blogging on the intarwebs since the early 21st century: Kineti L'Tziyon Judah Himango

[Todd Smith]

I usually use them in conjunction with a database and linq. But I don't see why they can't be used whenever the need arises. http://qconlondon.com/london-2009/presentation/Null+References:+The+Billion+Dollar+Mistake[^]

Todd Smith

[Dario Solera]

Well, all value types are non-nullable by default. You can make them nullable by wrapping them in a class. This is done automatically in .NET with the "?" operator.

If you truly believe you need to pick a mobile phone that "says something" about your personality, don't bother. You don't have a personality. A mental illness, maybe - but not a personality. - Charlie Brooker My Photos/CP Flickr Group - ScrewTurn Wiki

[Shog9 0]

Yeah... And boy is that not slick. :rolleyes:  ("Yay!" i thought to myself, upon hearing of this for the first time... "Now i can write generic code that treats value types and reference types the same!" The gods of .NET proceeded to laugh heartily at my naivete...)

[Oakman]

John Simmons / outlaw programmer wrote:

Using my astounding precognitive powers, I predict that this will be a pointless thread.

I knew you were going to say that.

Jon "One loves to possess arms, though they hope never to have occasion for them." --Thomas Jefferson to George Washington, 1796. Soap Box 1.0: the first, the original, reborn troll-less

[PIEBALDconsult]

Throw in something about dangling pointers.

[PIEBALDconsult]

Well, they're low in fat, sodium, and carbohydrates, and contain no alcohol; how can that be good? :confused:

[realJSOP]

You just ruined an otherwise pointless thread with serious commentary. Get with the program.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
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[Gary Wheeler]

What about "raising" an exception?

Software Zen: delete this;

[Gary Wheeler]

MS Access users are should be violated. - ftfy

Software Zen: delete this;

[Dave Kreskowiak]

NOW who's the outlaw? :laugh:

A guide to posting questions on CodeProject[^]
Dave Kreskowiak Microsoft MVP Visual Developer - Visual Basic
     2006, 2007, 2008
But no longer in 2009...