a4j:actionparam question

[radu321]

Hi ,

I am using an a4j:actionparam trying to set a value which comes from a bean in a modal panel when user click on an menu item.

This is a part of my code:

...
<rich:menuItem  ajaxSingle="true" oncomplete="#{rich:component('myModalPanel')}.show()" reRender="myModalPanel"  submitMode="ajax">
      <a4j:actionparam name="param" value="#{bean1.value1}" />
</rich:menuItem>

....

<rich:modalPanel id="myModalPanel">

...

   <h:outputText id="testParam" value="#{param}" />

...

</rich:modalPanel>

What i am trying to do is to implement this behavior without using a second bean where to set the value of a4j:actionparam, something like:

        <a4j:actionparam name="param" value="#{bean1.value1}"  assignTo="#{bean2.value2}" />

Please if you have an idea about this, give me a hand...

Regards,

Radu

[ilya_shaikovsky]

This parameter is placed in request map. So it's already cleared when render responce phase executed. So you have to store it in some object.

[mafym]

Maybe this could help you

(add a:support to the element you want to click):

<a:support event="onclick" reRender="testParam">
     <f:setPropertyActionListener value="#{bean1.value1}" target="#{bean2.value2}" />
</a:support>

<h:outputText id="testParam" value="#{bean2.value2}" />

[ilya_shaikovsky]

        <a4j:actionparam name="param" value="#{bean1.value1}"  assignTo="#{bean2.value2}" />

this will do the same.

[radu321]

Hi ,

Thanks very much for posting and helping !

I found this article

  http://livedemo.exadel.com/richfaces-demo/richfaces/dataTable.jsf?tab=editDataTable

there it is used an aj4:actionparam something like  <a4j:actionparam name="vin" value="{carVin}" /> where i belive that "vin" is used like an index for an iterator... and is called something like:

<rich:dataTable value="#{dataTableScrollerBean.allCars}"   onRowContextMenu="#{rich:component('menu')}.show(event,{carVin:'#{category.vin}')}">

     <rich:column width="200px">
            <f:facet name="header">
                <h:outputText value="VIN" />
            </f:facet>
            <h:outputText value="#{category.vin}" />
     </rich:column>

Any way i tryed to do it in that way but also without a second bean it does not work... but after i found this example i am confuzed, is there a way to send,store the value from that <a4j:actionparam without to store it in a bean (using assignTo property) ?

Regards,

Radu

[radu321]

Hi ,

Thanks very much for posting and helping !

I found this article

  http://livedemo.exadel.com/richfaces-demo/richfaces/dataTable.jsf?tab=editDataTable

there it is used an aj4:actionparam something like  <a4j:actionparam name="vin" value="{carVin}" /> where i belive that "vin" is used like an index for an iterator... and is called something like:

<rich:dataTable value="#{dataTableScrollerBean.allCars}"   onRowContextMenu="#{rich:component('menu')}.show(event,{carVin:'#{category.vin}')}">

     <rich:column width="200px">
            <f:facet name="header">
                <h:outputText value="VIN" />
            </f:facet>
            <h:outputText value="#{category.vin}" />
     </rich:column>

Any way i tryed to do it in that way but also without a second bean it does not work... but after i found this example i am confuzed, is there a way to send,store the value from that <a4j:actionparam without to store it in a bean (using assignTo property) ?

Regards,

Radu

[ilya_shaikovsky]

when the param used without assignTo - it should be handled like standard f:param -you should process it in action or listener by getting from request parameters map

[radu321]

Hi !

  Thanks a lot for your post, it was very helpful !

Regards,

Radu