What is Opf3? Why is Opf3? How is Opf3? All these burning questions and issues discussed here.
 | |
| | I have a property of a business object that maps to a unique identifier field in a SqlServer database.
In C# the property uses a Guid as below.
private Guid _rateCodeId;
[Field("RateCodeId", AllowDBNull = true)]
public Guid RateCodeId
{
get { return _rateCodeId; }
set { _rateCodeId = value; }
}
Can you suggest how I might set this field to null as Guid does not accept null. What technique would you advise.
Thanks
|
| |
| | Hi!
.NET 2.0 supports nullable types. In C# you only put a ? after the type declaration. Like for example with a guid:
private Guid? _id = null;
These types allow then to be set to null  Opf3 detects that and saves a dbnull.
I hope this helps.
Greetings,
Christian
|