refresh jsf component from backing bean

[svkap]

Hi again.

I am sure that this is really stupid question but I couldn't find any examples. I want to refresh a group of components and update their values from the backing bean (after execution of 1 method). I have access to the components but I cannot figure out how can I do it. I want to achieve the effect of HtmlAjaxSupport.

I have tried with this with no luck:

myPanelGrid.processUpdates(FacesContext.getCurrentInstance());

Thank you.

[nbelaevski]

Hi Svetoslav,

Do you want to re-render chosen components by AJAX?

[svkap]

Hi.

Yes. I want to re-render them by AJAX. I have h:panelGrid with 2 components inside - h:outputText and p:rating (primefaces rating component). I want to re-render the components indside panelGrid at the end of a method inside my backing (triggered by the rating component).

[nbelaevski]

The only thing you need to do for this is to specify IDs of components as value of "reRender" attribute for RF AJAX component. You can bind reRender attribute to bean property, so that it will be dynamic.

[svkap]

Hi.

I have already tried using <a4j:support event="onchange" reRender="componentId" /> . The problem is that I do not know how to trigger onchange event because a4j do not intercept the changes in primefaces raiting component.

[nbelaevski]

Does it have "onchange" attribute?

[svkap]

Hi.

I have updated my primefaces components and the problem was solved. Actually the component has a property for dynamically update of components. Unfortunately in the version I was using before there was a bug and these components were not updated. That is why I wanted to do some workaround. However, now the problem disappeared.

I am still curious how can I refresh a component from inside the backing bean..

[nbelaevski]

So,

<a4j:support event="onchange" reRender="#{bean.ids}" /> 

should work for you. Fill "ids" properties in action method and these components will be updated.