First alternative, using component binding (note: your backedbean must
be session scoped):
<h:dataTable binding="#{backedBean.component} value="..." ... >
....
<h:selectOneMenu styleClass="blue" value="currentVersion">
<f:selectItems value="#{backedBean.version}"/>
</h:selectOneMenu>
....
</h:dataTable>
In you backed bean:
public void setComponent(UIComponent component) {...}
public UIComponent getComponent() {...}
public SelectItem[] getVersion() {
...
int row = ((UIData)getComponent()).getRowIndex();
...
}
Second alternative (prefered), do a separate selectItems construction in
each bean of collection:
<h:dataTable value="#{backedBean.items}" var="item" >
....
<h:selectOneMenu styleClass="blue" value="#{item.currentVersion}">
<f:selectItems value="#{item.availableVersions}"/>
</h:selectOneMenu>
....
</h:dataTable>
En l'instant précis du 06/08/07 10:07, Dipl.-Ing. Torsten Liermann
s'exprimait en ces termes:
> Hi,
>
> A Beginner's question to h:dataTable
>
> I have a table for each row another
> Combo box must be generated. The contents surrender from the current row
> object
>
> Unfortunately, the expression Language does not support the following syntax:
>
> <h:selectOneMenu styleClass="blue" value="currentVersion">
> <f:selectItems value="#{backedBean.version(rowObject}"/>
> </h:selectOneMenu>
>
>
> Is there a callback into the backing bean which is called for each row?
> Or how is the recommended way without touch the domain object?
>
> Thanks
> Torsten
>
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