When db4o cannot store a object, it will throw an exception. This is the default behavior. When you disable this object, db4o will silently ignore objects which cannot be stored instead of throwing an exception.
IEmbeddedConfiguration configuration = Db4oEmbedded.NewConfiguration(); configuration.Common.ExceptionsOnNotStorable = false;
Dim configuration As IEmbeddedConfiguration = Db4oEmbedded.NewConfiguration() configuration.Common.ExceptionsOnNotStorable = False