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https://docs.jboss.org/richfaces/latest_3_3_X/en/devguide/html/a4j_support.html
The <a4j:support> component is the most important core component in the RichFaces library. It enriches any existing non-Ajax JSF or RichFaces component with Ajax capability. All other RichFaces Ajax components are based on the same principles <a4j:support> has.
https://docs.jboss.org/richfaces/latest_3_3_X/en/tlddoc/a4j/support.html
During Encoding. Doesn't encode as a component. Instead, it adds ValueBinding for a property of the parent component with the name as a value of its "event" property. As a result, when rendered, the parent component builds JavaScript code for submitting an AJAX request on this event.
https://stackoverflow.com/questions/11223283/action-not-called-on-a4jcommandbutton-with-inner-a4jsupport-onclick-event
Jun 26, 2012 · But I think that you can solve it by moving the reRender attribute from the <a4j:support> to the <a4j:commandButton>, so that it's only re-rendered when the default action completes. Or even better, just remove that <a4j:support> altogether, you don't seem to need it at all.
https://docs.jboss.org/richfaces/latest_3_3_X/en/devguide/html/a4j_commandButton.html
The <a4j:commandButton> component is very similar to JSF <h:commandButton>, the only difference is that an Ajax form submit is generated on a click and it allows dynamic rerendering after a …
https://community.oracle.com/thread/1719247
Jul 14, 2010 · Hi All, I Need to Hide/Show the outputpanel when i select one option from <h:selectOneRadio> using a4j:support. By default Date output panel is hidden but when yes option is selected it should be displayed and vice versa using ajax support.
https://developer.jboss.org/thread/155528
Nov 24, 2010 · So instead I have two <a4j:support> tags with rendered conditionals to make sure the correct one is used in the view. I've ensured the rendered="" value between the two are always mutually exclusive. But only the first <a4j:support> is ever recognized by Seam (the second isn't added to the component tree even if the rendered attribute is true).
https://community.oracle.com/thread/1725012
Jun 23, 2008 · Hi Timmya , I think your problem is that the jsf value change event is handled before update-model phase so the previous selected values are re-setted after the ccMe method. If so take a look to this old topic: valueChangeListener Do you really need a server call to copy a …
https://docs.jboss.org/richfaces/latest_3_3_X/en/devguide/html/ArchitectureOverview.html
<a4j:commandButton> and <a4j:commandLink> tags are used to send an Ajax request on "onclick" JavaScript event. <a4j:poll> tag is used to send an Ajax request periodically using a timer. The <a4j:support> tag allows you to add Ajax functionality to standard JSF components and send Ajax request onto a chosen JavaScript event: "onkeyup ...
https://coderanch.com/t/512056/java/support-onchange-event-firing
When I select a country (placeCountry), the first a4j:support fires the onclick event and then rerenders the selectTown selectOneMenu, which then displays a town. Now as the selectTown changes, it should fire the onchange event and rerender placesFound... but it …
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