Hi,…ciao :-) Daniele there is something that set null to _displayGroup after the page render ?
Seems like that when u click on the link the displayGroup() method is called again and resets the _displayGroup array (is something had set it to null). Put a braakpoint there and check. Amedeo On 28/gen/2013, at 16:39, Daniele Corti <[email protected]> wrote: > Hi everyone, > my app is doing something of strange, and I don't understand what it's wrong > with my code. > > I've some Entities that I've to display in a table, so I use the > ERXDisplayGroup class. > > Here an example: > > public ERXDisplayGroup<Collaborator> displayGroup() { > > // IF Null instantiate it > if(_displayGroup == null){ > _displayGroup = new ERXDisplayGroup<Collaborator>(); > > EOArrayDataSource dataSource = new > EOArrayDataSource(EOClassDescription.classDescriptionForEntityName(Collaborator.ENTITY_NAME), > editingContext()); > > //Check user is logged in > if(session().hasUserLogged()){ > //Check if user has chose the company > if(session().hasChoosedCompany()){ > > dataSource.setArray(Collaborator.fetchCollaboratorsForCompany(editingContext(), > session().company())); > } > } > _displayGroup.setDataSource(dataSource); > _displayGroup.setCurrentBatchIndex(1); > > _displayGroup.setNumberOfObjectsPerBatch(NUMBER_OF_OBJECTS_PER_BATCH); > _displayGroup.fetch(); > } > return _displayGroup; > } > > this method is called as binding in the loop component: > <wo:loop list = "$displayGroup.displayedObjects" item = "$object"> > > and the object binding is simply a variable of the component. > private Collaborator object; > //With public getter and setter > > on each row I've a link that call: > > public WOActionResults selectObj() { > this.parent().takeValueForKey(object, "selectedCollaborator"); > return performParentAction("selectCollaborator"); > } > > Ok, I'm able to filter the list using the setQualifier method of the > DisplayGroup: > > public void setQualifier(EOQualifier qualifier){ > displayGroup().setQualifier(qualifier); > displayGroup().fetch(); > } > > public EOQualifier qualifier() { > return null; > } > > I call the list component passing the qualifier binding in the parent > componet: > > <wo:CollaboratorsList qualifier = "$qualifier"></wo:CollaboratorsList> > > When I pass a qualifier the page show the filtered list correctly. > > The problem is: when I click on the link with action = "$selectObj" of the, > for example, 2nd object of filtered list, the object variable in the class > does not contain the instance related to the selected row, but the instance > in the second position of the full list of objects in the displayGroup. > > Example: > > a table with: > > ------------------------------------------------------------------- > | link | Mario Rossi | The Address 1 | His City | > ------------------------------------------------------------------- > | link | John Smith | The Address 2 | City2 | > ------------------------------------------------------------------- > | link | Francis Cabret | The Address| His City | > ------------------------------------------------------------------- > .... > ------------------------------------------------------------------- > > I filter the list for name LIKE "*John Smit*" and get only one row. > > ------------------------------------------------------------------- > | link | John Smith | The Address 2 | City2 | > ------------------------------------------------------------------- > > but when I click on the link, in the action selectObj(), the object variable > contains the instance for Mario Rossi. > > That's strange for me... > > I thought this should have work, but, evidently, is not so! > > Which is the correct way to use the ERXDisplayGroup.setQualifier method? > > Thanks in advance! > -- > Daniele Corti > -- > I DON'T DoubleClick > ------------------------------------------------------------------------------ > Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, > MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current > with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft > MVPs and experts. ON SALE this month only -- learn more at: > http://p.sf.net/sfu/learnnow-d2d_______________________________________________ > Wonder-disc mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/wonder-disc
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