Non rendered field bound to managed bean not firing setter

Question

I suspect this is a silly question, but here goes...

I have two fields on a custom control, both are bound to managed bean properties (as opposed to document fields). The second field is only rendered when a specific value is chosen in the first field.

What I am seeing is that the setter for the second field is not firing after it has been rendered (the getter is firing just fine).

I have worked around the problem by computing the CSS display property on the second field to be block or none depending on the value in the first field. Everything works fine in this situation, it seems to be specifically related to whether the second field is rendered when the page is first loaded.

***Edit Here's the sample code block:

    <div class="control-group">
    <xp:label value="Party Type:" id="partytypelabel" for="party_typetv">
    </xp:label>
    <div class="controls">
        <xp:comboBox id="party_typetv" value="#{InvolvedRecord.partytypetv}"
            required="true" defaultValue=""
            readonly="#{javascript:!InvolvedManager.isInEditMode()}">
            <xp:selectItem itemLabel="&lt;select&gt;" itemValue="">
            </xp:selectItem>
            <xp:selectItems>
                <xp:this.value><![CDATA[#{javascript:InvolvedManager.getPartyTypes()}]]></xp:this.value>
            </xp:selectItems>
            <xp:eventHandler event="onchange" submit="true"
                refreshMode="partial" disableValidators="true" refreshId="partyfields">
            </xp:eventHandler>
        </xp:comboBox>
    </div>
</div>
<xp:panel id="partyfields" tagName="fieldset">
    <xp:this.rendered><![CDATA[#{javascript:InvolvedManager.hasPartyType()}]]></xp:this.rendered>
    <xp:div styleClass="control-group">
        <xp:label for="Adverse_Party_TypeTL" value="Type:" id="adversepartytypelabel">
        </xp:label>
        <div class="controls">
            <span>
                <xp:comboBox id="Adverse_Party_TypeTL"
                    value="#{InvolvedRecord.adversepartytypetl}" readonly="#{javascript:!InvolvedManager.isInEditMode()}">
                    <xp:selectItem itemLabel="&lt;select&gt;"
                        itemValue="">
                    </xp:selectItem>
                    <xp:selectItem itemLabel="Company" itemValue="Company">
                    </xp:selectItem>
                    <xp:selectItem itemLabel="Individual" itemValue="Individual">
                    </xp:selectItem>
                    <xp:eventHandler event="onchange" submit="true"
                        refreshMode="partial" disableValidators="true" refreshId="adversepartyfields">
                    </xp:eventHandler>
                </xp:comboBox>
            </span>
        </div>
    </xp:div>
</xp:panel>

***End Edit

This is running on an 8.5.3 server.

Has anyone seen anything like this or maybe offer an explanation as I am confused!

Do you reload the whole page when the second field should appear and get a value or do you do a partial refresh of the second one? — Oliver Busse
I've tried both and it doesn't make any difference. In either case the setter is not even being called, let alone persisting the value of the property across the ajax request. — Matt White
I suspected a standard JSF mechanism as well...FWIW I actually get around this particular issue by doing what the guy in the post didn't want to do which is to manage the data in the session-scoped bean as well. So...a save records the data within the bean as well as in the document. This architecture is required though for our application and may not readily apply to other apps. — Russell Maher

Sven Hasselbach Sven Hasselbach · Accepted Answer · 2014-01-04T12:36:24

You could render the component in all phases except the renderphase. This would allow to set the value during update phase, but would hide it to the client.

Here is an example: Conditionally hidden edit box in a partially refreshed panel

EDIT:

<xp:this.rendered>
   <![CDATA[#{javascript:
      if( view.isRenderingPhase() ){
         return InvolvedManager.hasPartyType();
      }else{
         return true;
      }
   }]]>
</xp:this.rendered>

Non rendered field bound to managed bean not firing setter

2 Answers