'Primitive type' as int can't be nullable, in the V2 of .NET they could. There also an open source librairy that add support for that.
I always init my field/property to int.MinValue (magic number) for int ... and use iBATIS nullValue replacement.
-Gilles
On 8/25/05, Clinton Begin <[EMAIL PROTECTED]> wrote:
Hey guys,
Who would have thought that I would post a question to the user forum eh?
My question is: What's the deal with non-nullable "primitive" types in C# ? Like seriously, Int32 extends Object (via struct?), and it's a class......so why can't it be set to null?
Whoops, that's a question for Microsoft. :-)
Anyway, a better question for this list is: What pattern do you use to represent NULL types from the database. That is, say you have an NUMERIC NULL field, and you want to map it to a class with a field/property of type int (Int32). It won't work because int can't represent null. So ...
Do you?
A) Write your own "NullableInt32" class and use a more complex mapping?
B) Use null value replacement and set the primitive to a magic number?
C) Something else?
Thanks much!
Clinton
