Hello Everyone.

I just started using NHibernate a few days ago and I've been actively reading the online forums. I've seen a lot about "Nullable" types here and on many other forums. These posts have typically been rather old, more than 6 months.

What i would like to know is if there are any known issues with using the .NET 2.0 nullable types (e.g. int?). I've created a test case using a simple database table (MSSQL) and i can't produce any errors by creating, updating or getting an entity that has a nullable field.

Any information would be appreciated.

thanks!

.NET 2.0 nullable types are fine to use. If using NHibernate 1.0.2 you just need to specify the type attribute in your property definitions.

So for a nullable DateTime,

<property name="MyProperty" type="DateTime" />

And then just declare your property as:

public DateTime? MyProperty { get; set; }

The type attribute needs to be specified only because NH 1.0.2 doesn't understand how to infer nullable types by reflection.

Thank you very much.

This confirms my test and definitely opens up the door for some NHibernate usage internally.

Thanks again!