h:graphicImage not reRender

问题

i have a jsf file where i have selectOneMenu and a h:graphicImage.Now the problem is when i send onchange request through selectOneMenu and want to reRender the h:graphicImage and want to show and hide boolean in action bean.But not work properly. Actully first i investigate it very carefully that when i send action through selectOneMenu the boolean value set correctly in bean but not set the reRender value properly.If i refresh page then it work properly.Anyone who i can solve it if i want to refresh page on selectOneMenu actionlistener then how i refresh page.My code is here for more detail

    <h:selectOneMenu id="stageListID" value="#{mnpBean.stageList.defaultValue}" >
<f:selectItems  value="#{mnpBean.stageList.values}"/>
<a4j:support event="onchange" actionListener="#{mnpAction.onStageListChangeAction}" reRender="addBtn1" oncomplete="resetViewConfigs();"/>
</h:selectOneMenu>

code for grphic image

<h:graphicImage id="addBtn1"  url=""  rendered="#{mnpBean.showAddButton}" style="cursor:pointer">
<a4j:support id="addRowBtn1" event="onclick"  actionListener="#{mnpAction.addMultiNoRingFence}"/>
</h:graphicImage> 

bean code here

public void onStageListChangeAction(ActionEvent ae) {
mnpBean = getMNPBean();
if ("10".equals(mnpBean.getStatusList().getDefaultValue()) &&       "010".equals(mnpBean.getStageList().getDefaultValue())) {
 mnpBean.setShowAddButton(false);         
 }else{
 mnpBean.setShowAddButton(true);         
 }

}

Any helping regarding this appreciate

回答1:

What you should do :

1. Wrap your <h:graphicImage/> in a container like <h:panelGrid/>

   <a4j:outputPanel ajaxRendered="true" layout="none" id="imageContainer">
    <h:graphicImage id="addBtn1"  url=""  rendered="#{mnpBean.showAddButton}" style="cursor:pointer">
       <a4j:support id="addRowBtn1" event="onclick"  actionListener="#{mnpAction.addMultiNoRingFence}"/>
    </h:graphicImage> 
   <a4j:outputPanel/>
   

2. Use the id of the container as the target of the reRender

   <a4j:support event="onchange" actionListener="#{mnpAction.onStageListChangeAction}" reRender="imageContainer" oncomplete="resetViewConfigs();"/>
   

For the reason why the issue is happening the first place, see explanation here

来源：https://stackoverflow.com/questions/14397771/hgraphicimage-not-rerender