[jboss-user] [JBoss Seam] - Re: Null Value in s:link w/IceFaces

[gzoller]

Ok, I'm making progress solving the problem.

It turns out that you definitely do need to annotate the list in the backing bean used to populate the <ice:dataTable> with @DataModel.  If you don't, even though IceFaces rendering components will see your line-item variable correctly populated, the Seam <s:link> tag won't feed the value back into Seam.

Now my next complication... 

Can you successfully nest <ice:dataTable>'s w/Seam?

Here's what I have so far:

Rendering xhtml:

  | <ice:dataTable id="departments" width="100%" cellspacing="1"
  |                        value="#{outer}" var="item"
  |                        rowClasses="rowClass1,rowClass2">
  |     <ice:column>
  |   	<s:link id="viewItem" value="#{item.name}" action="#{mgrBean.selectItem(item)}"/>
  | 
  | 		<ice:dataTable width="100%" cellspacing="1"
  |                        value="#{inner}" var="bucket"
  |                        rowClasses="rowClass1,rowClass2">
  |                  <ice:column>
  |   	             <s:link id="viewBucket" value="#{bucket.name}" action="#{mgrBean.selectBucket(bucket)}"/>
  |                  </ice:column>
  |                 </ice:dataTable>
  |    </ice:column>
  | </ice:dataTable>
  | 

ManagerBean.java

  | @Name("mgrBean")
  | public class ManagerBean {
  |     ...
  |     	@DataModel
  | 	private List<Foo> list;
  |     ...
  |         @Create
  |         public void init() {
  |            // populate list
  |         }
  | 
  |         public String selectItem(Foo foo) {...}
  |         public String selectBucket(Bar bar) {...}
  | }
  | 

Foo.java

  | @Name("foo")
  | public class Foo {
  |      @DataModel
  |      private List<Bar> buckets;
  |      ...
  | }
  | 

So it might render something like this:


  | ONE
  |           A
  |           B
  | TWO
  |           C
  | THREE
  |           D
  |           E
  | 

Here's what happens:  The outer table is rendered and clicking on the s:link elements for ONE, TWO, or THREE correctly passes the corresponding (non-null) objects to the backing bean (calling selectItem()). 

But clicking on A-E is still passing null to selectBucket() on the backing bean (ManagerBean).

Has anyone nested these before? How about nesting non-IceFaces dataTables?

View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4018276#4018276

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4018276