Dropdown list value is null

[ever]

Hello I recieve a null value from the jsf view at my session bean. Maybe it is just something tiny but cant see the neadle in the hay..

best regards !
JSF code

<rich:panelBar id="pB_selectSamples"  width="530">
                        <ui:repeat value="#{category}" var="cat">                 
                                <rich:panelBarItem id="pbi_#{cat.id}" label=">>  #{cat.name}">                      
                                                <a4j:form ajaxSubmit="true" reRender="qty_column">
                                                <h:dataTable id="dT_#{cat.id}" var="product" value="#{cat.children}">     
<!-- QTY -->                                              
                                             <h:column id="qty_column" rendered="#{product.maxSamples gt 0}">                                             
                                                        <f:facet name="header">
                                                                <h:outputText value="Quantity" />
                                                        </f:facet>                                                        
                                                        <h:selectOneMenu id="SOM_qty" value ="#{order.count}" >
                                                                <s:selectItems value="#{product.sampleMaxList}" var="count"
                                                                        label="#{count}" noSelectionLabel="Qty." hideNoSelectionLabel = "false"/>                                                                                                                                                                                    
                                                        </h:selectOneMenu>
                                                        
                                                        <h:commandLink value="Add"  action="#{order.add(product)}" >                                                              
                                                        </h:commandLink>
                                                </h:column>
                                </h:dataTable>
                        </a4j:form>
                                         
                </rich:panelBarItem>
        </ui:repeat>                      
</rich:panelBar>

if the user clicks on the add button everything works fine ther right product gets submitted but the "#{order.count}" is 0 Zero

@Stateful
@Scope(ScopeType.SESSION)
@Name("order")
public class OrderBean implements Order  {
        
    @Logger private Log log;
        
    @In FacesMessages facesMessages;
    
    @PersistenceContext EntityManager em;
       
    // @In(required=false) did try it with no success
    private String  count ;

 public void add(Product product){
    log.info("add was called
 }

        public String getCount() {
                return count;
        }



        public void setCount(String count) {
                this.count = count;
        }

I did try all kind of possibilities but everything without a success, does it maybe hase something to do with the stacking of the loops inside each other?

[mars1412]

I think reading
c:foreach-vs-ui:repeat
should help you understand what's going on.

[ever]

Ok I read it.
So i reduced my situation to following starting with only one DataTable.

@Stateful
@Scope(ScopeType.SESSION)
@Name("order")
public class OrderBean implements Order  {
        
    @Logger private Log log;
        
    @In FacesMessages facesMessages;
    
    @PersistenceContext EntityManager em;
       
    @In(required=false) <<-- Now injection
    private String  count ;

    @DataModel
    List<Product> products;

 public void add(Product product){
    log.info("add was called");
 }




<h:messages styleClass="message" />
                <a4j:form reRender="qty_column" ajaxSubmit="true">
                        <h:dataTable id="dT_product" var="product" value="#{products}">


                                <h:column id="qty_column" rendered="#{product.maxSamples gt 0}">
                                        <f:facet name="header">
                                                <h:outputText value="Quantity" />
                                        </f:facet>

                                        <h:selectOneMenu id="SOM_qty" value="#{count}">
                                                <s:selectItems value="#{product.sampleMaxList}" var="c"
                                                        label="#{c}" noSelectionLabel="Qty." hideNoSelectionLabel="false" />
                                        </h:selectOneMenu>

                                        <h:commandButton value="Add" action="#{order.add(product)}"
                                                id="addtocart">
                                        </h:commandButton>

                        </h:column>

                </h:dataTable>
                </a4j:form>

If i click on the add button the product gets submitted to the bean but not the value in selectItems (fyi #{c} is of type string)

so i have a list of  5 entries with 5 drop down boxes

if i select first one with propper value and click the add button the product is submitted but not the value form the selectOneMenu
only if I choose from the last dropdown box of the list a value and click the coresponding button only then the value from the dropdown list gets submitted to the bean

I found an article in the wiki whih is abut the same problem My Link
i stick right to the solution but it doesnt work for me

regards

[mars1412]

hmm.. I don't understand if your code works at all.
you use

#{count}

in your page. What does it refer to?
do you mean

#{order.count}

anyway: here is an excellent article about using-datatables.