You can do left join in the QueryOver API (very similar to LINQ method chaining) you can do something like:
session.QueryOver<Project>().Left.JoinQueryOver(p => p.Type).OrderBy(p => > p.Type.Label).Take(...); > (warning: not tested, try also session.QueryOver<ProjectType>() if p.Typedoesn't work. I haven't tried the code and there is no XML documentation to advise) Regards, -- Mohamed Meligy Senior Developer (Microsoft Technologies - Technical Delivery) Injazat Data Systems P.O. Box: 8230 Abu Dhabi, UAE [ Local Time Offset: GMT +4 ] Direct: +971 2 4045385 Mobile: +971 50 2623624, +971 55 2017 621 E-mail: [email protected] Weblog: http://gurustop.net On Thu, Jun 24, 2010 at 5:43 PM, Diego Mijelshon <[email protected]>wrote: > Hmmm... it's slightly unexpected as a behavior, although it's consistent > with the equivalent HQL: > > from Project order by Project.Type.Label > > It generates an inner join (actually, a select from two tables with a where > clause) > > With HQL you can use explicit left joins: > > select project > from Project project > left join project.Type as type > order by type.Label > > But I don't know if it's possible with Linq... > > Diego > > > > On Thu, Jun 24, 2010 at 08:59, Kakone <[email protected]> wrote: > >> Hello, >> >> I have a project class with a Type property (it's a nullable reference >> to a ProjectType entity). >> >> I want to order like this : >> Session.Query<Project>().OrderBy(p.Type.Label).ToList() >> When I do this, I don't get the objects where Type property value is >> null. >> >> So, I tried to write this : >> Session.Query<Project>().OrderBy(p => p.Type == null ? null : >> p.Type.Label).ToList() >> But, in this case, I've got an exception : "No persister for : >> xx.xxx.EntityBase" >> >> What can I do to get all the objects including those with Type == >> null ? >> >> >> Cordially, >> Kakone. >> >> -- >> 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]<nhusers%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/nhusers?hl=en. >> >> > -- > 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]<nhusers%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/nhusers?hl=en. > -- 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.
