Home/ Questions/Q 699375
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-14T03:22:45+00:00

I have a JSF application with several major components and a component tree under

  • 0

I have a JSF application with several major components and a component tree under each.

On a certain event (Value change) I would like to reRender the entire component tree for one of those components.

For example: can I rerender components 1,2 and 3 in one shot here:

<h:panelgroup id="1">
 <h:panelgroup id="2">
  <h:panelgroup id="3">
  <h:panelgroup/>
 <h:panelgroup/>
<h:panelgroup/>

<h:commandButton rerender="1*"> <--- Made up code.

Is that possible?

Another Idea – Can I reRender with wildcards? (I.E – ReRender all components who’s ID’s begin or contain: “UpdateMe”)

Thanks!

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Yes, you can re render whole trees.

    You can’t use wildcards (afaik), but you can use expressions – for example

    reRender="#{yourBean.yourRenderExpression}"

    which can return comma-separated list (or a Collection) of elements to reRender.

    Generally, you have to pass arguments that follow UIComponent.findComponent(..) algorithm.

    Note that <h:commandButton> doesn’t have a rerender attribute. It’s either <a4j:commandLink and reRender (capitalized), or you should use <f:ajax> from jsf 2.

    • 0