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I have a simple HTMLCommandButton that I want to cause a rerender to another component. I know of a simple way to do that - add an ajax support object and have it run on "onclick" event and rerender.

<h:commandButton value="Submit" action="#{actions.submitToDB}"> <a4j:support event="onclick" reRender="Button0" /> </h:commandButton>

I figured there has to be a smarter way to do this with the on* attributes of the HTML CommandButton but I'm not sure what to write to cause the rerender (Using this alleged method)

Thanks!

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No, there isn't a smarter way in the common case. This is the way to do it. You will have to do the following

  • set type="button" on the button.
  • set the action on the <a4j:support> rather than on the button istself.

In this particular case (a button) a shortcut will be:

<a4j:commandButton value="Submit" action="#{actions.submitToDB}" reRender="Button0" />
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Thank you. I guess I can just as well stick with the support object.
@Ben see my update. You'd have to do something more in order to use the support tag. I'd recommend the a4j:commandButton
+1; Maybe this is what you meant by your last comment, but I'm not sure. It seems using a4j:commandButton instead of h:commandButton is what fixed this for me, as that made the UI stop doing a full POST + refresh cycle.

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