dont worry.... just map relations as Bag, and in your class you an IList<T>....
2009/5/19 kylejmcintyre <[email protected]> > > Hi, > > I'm looking to use an ORM as part of a large software rewrite. I'm > rewriting an Access application in .NET. Naturally, I'm working with a > nastly old legacy database. I'm hoping to use Windows forms data > binding to bind to my persistent data (mainly to speed my > development). I originally thought this could be easily accomplished > with NHibernate since Windows Forms data binding only requires that a > collection implements IList in order to support complex data binding, > and NHibernate enables me to write my own POCO classes that could use > an IList implementation for subclasses. However, the following > statement from the documentation has me worried: > > "The mapping of an IList or array requires a seperate table column > holding the array or list index (the i in foo[i]). If your relational > model doesn't have an index column, e.g. if you're working with legacy > data, use an unordered ISet instead. This seems to put people off who > assume that IList should just be a more convenient way of accessing an > unordered collection. NHibernate collections strictly obey the actual > semantics attached to the ISet, IList and IDictionary interfaces. > IList elements don't just spontaneously rearrange themselves! " > > While I understand the rationale for this design, I'm afraid it's > going to make the use of NHibernate more cumbersome in my project. I'm > not eager to add a bunch of index columns on my subtables in order to > support implementing the IList interface on my business objects. So my > questions are: > > - Am I interpreting this situation correctly? I'm new to both .NET and > NHibernate. > - If so, are there any decent workarounds that won't affect my sleep > at night ;) > > Thanks, > Kyle > > > > -- Paulo R. Quicoli Editor Técnico - ClubeDelphi Magazine - DevMedia --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nhusers?hl=en -~----------~----~----~----~------~----~------~--~---
