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Menu       Home What is NDO? - Executive Overview - NDO for Developers How NDO Works - Persistent Classes - Mapping - Queries - Reverse Engineering - Inheritance, Polymorphism - Distributed Applications Licensing Support - Support Forum - FAQ - Solutions - Downloads - E-Mail Support - Tutorial Videos Online Shop Contact	Welcome!     Welcome to the NDO support forum!  Please register/login at the site if you want to post a thread. We sometimes copy support mails of common interest to the forum. They appear with anonymous sender.  Please post your messages in English language if possible. You can do your posts also in German, we will translate your post and our answer so that all users of the forum can read your posts.  The forum software requires that javascript is enabled.  Please do not insert licence information or licence keys in forum posts.  If you know a good answer to a post of another user, feel free to reply!  The forum is monitored. We reserve the right to remove posts we consider not to be useful for other forum users.  NDO Support Forum     Search Forum Home   NDO-Forum postings in english please, if possible.  Developing with NDO  Error on adding...  Error on adding object trough relation    1/8/2007 8:21:08 AM didikunz 9 posts www.mediasupport.ch Error on adding object trough relation Hi, I have an error: 'Can only add persistent objects in Assoziation DataObjects.Projects >DataObjects.Classes.' on the line _Classes.Add(c) in the following by 'Add Accessor' build function: Public Function NewClasses() As Classes Dim c As Classes = New Classes _Classes.Add(c) Return c End Function The call originates from this: Dim cls As Classes = currProj.NewClasses cls.Name = "New Class" pm.Save() Any idea Regards: Didi  1/8/2007 1:19:47 PM mig 9 posts Re: Error on adding object trough relation Hi didi, try to use MakePersistent() on your new object. Otherwise the persistence manager will not know your object. Greetings, michael  1/10/2007 6:44:25 AM didikunz 9 posts www.mediasupport.ch Re: Error on adding object trough relation Hi mig, I know that, but why does the 'add accessor' create such a method, and the doc tells to use it? Didi  1/10/2007 8:39:45 AM didikunz 9 posts www.mediasupport.ch Re: Error on adding object trough relation Hello Michael, I found the error: the relation was of type 'Default' instead of 'Composite' Thank you anyway. Didi.  1/15/2007 6:53:19 PM Mirko 109 posts Re: Error on adding object trough relation Hi Didi normally the NDO AddAccessor functionality adds a factory method NewXxx, if your relation is a composite. If your relation is an assoziation, NDO adds a AddXxx method. Regards: Mirko  Page 1 of 1   NDO-Forum postings in english please, if possible.  Developing with NDO  Error on adding... Flat View Tree View Oldest To Newest Newest To Oldest   Search  Forum Home