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POCancellation of Ajax Request in RichFaces
 

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    <p>I have issue with canceling Ajax Request. Our application interface is build in RF.</p> <p>On the progress bar modal there should be cancel button - that interupt current operation, for example cancel filling controls from database. How to make it?</p> <p>I tried using reloading page, flags with "if" conditions on getters for controls and also using "bypassUpdates" with no positive effects.</p> <p>Thanks in advance for your help</p> <p>XHTML (Button):</p> <pre><code>&lt;a4j:commandButton id="showData" value="View" styleClass="hBtn" disabled="#{events.isButtonsDisabled}" oncomplete="if (#{facesContext.maximumSeverity==null}) {window.open('/seed/pages/data.jsf','DATA')};" actionListener="#{events.actionShow}"/&gt; </code></pre> <p>JAVA: (Button):</p> <pre><code>public void actionShow(ActionEvent evt) { //Some logic, getting data from database } </code></pre> <p>XHTML (Main Page - showing wait Popup)</p> <pre><code>&lt;a4j:form&gt; &lt;a4j:status id="ajaxStat" onstart="Richfaces.showModalPanel('waitPanel');" onstop="#{rich:component('waitPanel')}.hide()" /&gt; &lt;/a4j:form&gt; </code></pre> <p>XHTML (Popup):</p> <pre><code>&lt;rich:modalPanel id="waitPanel" autosized="true" moveable="false" minWidth="250" styleClass="popup"&gt; &lt;f:facet name="header"&gt; &lt;h:panelGroup&gt; &lt;h:outputText value="Operation in progress"&gt;&lt;/h:outputText&gt; &lt;/h:panelGroup&gt; &lt;/f:facet&gt; &lt;f:facet name="controls"&gt; &lt;h:panelGroup&gt; &lt;h:graphicImage value="../images/icons/action_close.gif" styleClass="hidelink" id="hidelink"/&gt; &lt;rich:componentControl for="waitPanel" attachTo="hidelink" operation="hide" event="onclick"/&gt; &lt;/h:panelGroup&gt; &lt;/f:facet&gt; &lt;a4j:form id="msgFrm" ajaxSubmit="true"&gt; &lt;h:outputText value="Please wait..."/&gt; &lt;h:graphicImage styleClass="progressBar" value="../images/indicatorbar.gif"/&gt; &lt;a4j:commandButton value="Cancel" type="button" onclick="#{rich:component('waitPanel')}.hide()" action="#{main.cancelAction}" bypassUpdates="true"/&gt; &lt;/a4j:form&gt; &lt;/rich:modalPanel&gt; </code></pre> <p>JAVA (Popup):</p> <pre><code>public void cancelAction(){ //there was setter for true/false flag for actionShow() here, now there is nothing here (it was not working) } </code></pre>
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