Perhaps I haven't described my problem exactly so that it's unterstandable...
My problem is the following:
If I add a Binding attribute to a inputText component, I can't update the value of this Textfield by an ValueChangeEvent of another InputText Component.(if the Page is new loaded, the inputTextfield is still empty=
If I try to set the value with the appropriate setter method, just nothing happens. The inputtext field stays empty and the value isn't updated.
When I remove the Binding attribute then everything works... (But I need the binding)
Do I have to set the value in another way?
Regards,
Andy
-----Ursprüngliche Nachricht-----
Von: Mitter Andreas, ISX
Gesendet: Donnerstag, 26. Januar 2006 14:10
An: MyFaces (E-Mail)
Betreff: Problems with ValueChangeEvent and ValueBinding
Hi all!
In my application I have a inputText Component with a ValueChangeEvent.
The ValueChangeMethod starts a Database query and if some data is found, then the founded records are written into other inputText Components on the mask.
The problem now is, that if I add a ValueBinding attribute to this other inputText fields, the new data from the query isn't written into the fields. If I remove the Valuebinding everything works...
How can I overcome this problem?
Here my jsp with two InputText Fields
<t:htmlTag value="td" rendered="#{showTags.showLfnr}">
<h:inputText binding="#{beziehungsDto.ITlfnr}" id="lfnr"
value="#{beziehungsDto.lfnr}" styleClass="mustfield" required="true"
size="35" rendered="#{showTags.showLfnr}" immediate="true"
valueChangeListener="#{querySelectHelper.selectSamData}"
onchange="submit()">
<f:validateLength maximum="35"></f:validateLength>
</h:inputText>
</t:htmlTag>
In this second field some data should be written. If I remove the binding attribute, it works, if I leave it, the field isn't updated...
<t:htmlTag value="td">
<h:inputText binding="#{beziehungsDto.ITpartnername}" id="partnernameneu" value="#{beziehungsDto.namepartner}"
styleClass="mustfield" required="true" size="35">
<f:validateLength maximum="35"></f:validateLength>
</h:inputText>
</t:htmlTag>
Here is the ValueChangeMethod:
public void selectSamData(ValueChangeEvent event)
{
beziehungsDto = (BeziehungDto)FacesUtil.getManagedBean("beziehungsDto");
qh = (QueryHelper)FacesUtil.getManagedBean("queryHelper");
Session session = HibernateSAMUtil.currentSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
String sqlstring = "Select a.firmNr, a.firmNamKurz, a.bdtKndNr," +
" a.lfvUebArt, a.sfDunsNr from Eklist a where a.firmNr=:liefnr";
Query q =session.createQuery(sqlstring);
q.setString("liefnr", (String)event.getNewValue());
Iterator it = q.list().iterator();
while(it.hasNext())
{
Object[] row = (Object[])it.next();
//beziehungsDto.setNamepartner((String)row[1]);
beziehungsDto.getITpartnername().setValue((String)row[1]);
beziehungsDto.setNamepartner((String)row[1]);
...
}
}
String viewId = "/popupAddBeziehung.jsp";
FacesContext context = FacesContext.getCurrentInstance();
UIViewRoot view = context.getApplication().getViewHandler()
.createView(context, viewId);
view.setViewId(viewId);
context.setViewRoot(view);
context.renderResponse();
tx.commit();
}
catch (Exception ex) {
if (tx != null)
tx.rollback();
MessageUtils.addMessage(FacesMessage.SEVERITY_WARN,
"errorListDataForAdminDB", null, context);// TODO
ex.printStackTrace();
}
finally {
HibernateSAMUtil.closeSession();
}
}
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