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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://developer.jboss.org/thread/151878
Nov 19, 2010 · <a4j:support event="onchange" action="#{Bean1.onSelectOneMenuChange}" reRender="#{Bean1.reRenderIDList}" /> . Inside the Bean1.onSelectOneMenuChange(), I set the Bean1.reRenderIDList to a set of ID that required to be reRender based on the business requirement.
https://docs.jboss.org/richfaces/latest_3_3_X/en/tlddoc/a4j/support.html
Tag support. Adds the AJAX functionality for those UIComponent-based component that have properties for JavaScript events. During Decoding: If a request is Ajax-performed, obtains the Map from the "requestParameterMap" property of the ExternalContext. If this Map contains non null value for the "clientId" key, creates a javax.faces.event ...
https://stackoverflow.com/questions/11223283/action-not-called-on-a4jcommandbutton-with-inner-a4jsupport-onclick-event
Jun 27, 2012 · Thanks for your answer BalusC. I understand my mistake. The a4j:support and startProcessingMainAction is here only to serve the GUI, it allows to replace the confirmation question by another content to monitor the action flow (like a progress bar). This must be done before the action is launched, or at its begining. If you see another way to do that, it will be great.
https://stackoverflow.com/questions/5402697/a4jsupport-tag-not-found-using-jsf-2
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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://www.howtobuildsoftware.com/index.php/how-do/giB/ajax-jsf-richfaces-ajax4jsf-a4jsupport-value-retrieved-from-hselectonemenu-is-always-null
There's a datatable with a h:selectOneMenu in each row. I want to be able to retrieve the value selected in the selectOneMenu in the bean. I'm using richfaces …
https://javabeat.net/a4jsupport-how-to-use-action-attribute/
Jul 18, 2008 · a4j:support and action attribute. This example program demonstrates how to use action attribute to update the server values and display in the screen. In this example user inputs are passed to update method and processed. The values are updated in the h:panelGrid component. also read: Introduction to JSF; JSF Interview Questions
https://coderanch.com/t/471805/java/Error-support
The <a4j:outputPanel> that is wrapping the <h:panelGroup> simply won't render. This is because I can't refer to its id in the rerender value because it is inside an <a4j:repeat>. For each iteration of the repeat, this id will be different.
https://javabeat.net/use-a4jstatus-to-display-status-of-the-request/
Jul 18, 2008 · a4j:support and a4j:status. When there is a request to the server, the client have to wait untill he gets the response. It will be nice if you give status of the server request processing. use a4j:status tag in the RichFaces to implement this feature in your webpages. In this example this tag is used with a4j:support and showing the status message while user types in the text field.
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