Hello. I am newbie. I write small application, I decided to use Typed DataSets as DB access layer. I have a problem with null values at DataBase.
During creating of DataSet classes from tables I figured out, that "Tool" does not set nullable properties for null-allow columns in database. In example: DateOfBirth property (which is not mandatory param) is not generated as DateTime?. I have opened xsd and tried tu put msprop:nullValue="_null". But after that "Tool" did not generated this property at all. I could not set (Null) from graphic generator. I also figured out, that there are methods: IsDateOfBirthNull() and SetDateOfBirthNull() - are those any way to handle nulls? I also found, that methods for DataAdapter like Update... contains those not null values. How to handle them? Currently I copy them to other code-file and overwrite them with nullable types, but this seems to be a little overwhelming. So - what is the most frequently used approach to null values?
