Bean method < a4j:commandButton > backend is not called on the click event.

I use code below. It seems back end bean method is not called when I click on the CommandButton. I think it has something to with the rendering.


<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional / / IN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
< html xmlns = "http://www.w3.org/1999/xhtml".
xmlns:UI = "http://java.sun.com/jsf/facelets".
xmlns:h = "http://java.sun.com/jsf/html".
xmlns:f = "http://java.sun.com/jsf/core".
xmlns:A4J = "http://richfaces.org/a4j".
xmlns:rich = "http://richfaces.org/rich".
xmlns:CDM = "http://mportal.com/cdm" >
< ui:composition >
< rich: panel >
< a4j:form id = "RefreshPropertiesInstanceForm" >
< id of the table = "RefreshPropertiesTable" width = "100%" border = "0" >
< b >
< td width = "35%" align = "right" >
< div class = 'fieldLabel' > filename property: < span
Class = 'requiredField' > * </span > < / div >
< table >
< style td = "margin-top: 15px;" "padding-left: 15px ' nowrap ="nowrap ".
align = "left" > < rich: comboBox id = "combo".
value = "#{testPropertyRefreshHelper.selectedPropertyFile} '"
enableManualInput = "false" >
< f: selectItems value = "#{testPropertyRefreshDetails.propertyFileNameList}" / > "
< a4j:support = "onchange" event
reRender = BypassUpdates "RefreshPropertiesInstanceForm" = "false".
ajaxSingle = "true" action = "#{testPropertyRefreshHelper.getPropertyFileContentFromRemoteServer}" / > "
< / rich: comboBox > < table >
< /tr >
< b >
< style td = "margin-top: 10px;" "padding-left: 100px" align = "left".
colspan = "3" > < h:inputTextarea id = value = "#{testPropertyRefreshHelper.propertyFileContent"firstTextArea"} '"
lines = "21" cols = "150".
style = "overflow-x: auto;" "Overflow-y: scroll '.
rendered = "#{testPropertyRefreshHelper.selectedPropertyFile! =" choose from downstairs "} '"
Disabled = "#{testPropertyRefreshHelper.selectedPropertyFile ==" choose from downstairs "}" >
< / h:inputTextarea > < table >
< /tr >

< b >
< style td = "margin-top: 10px;" "padding-left: 400px" align = "left".
colspan = "2" >
< a4j:commandButton id = "refreshPropertyButton" value = "refresh."
image = "#{imageManager.imageMap ['REFRESH_BUTTON']}" "
rendered = "#{testPropertyRefreshHelper.selectedPropertyFile! =" choose from downstairs "} '"
action = "#{testPropertyRefreshHelper.updatePropertyFileContentInRemoteServer} '"
reRender = "RefreshPropertiesInstanceForm" >
< / a4j:commandButton >
< table >
< /tr >
< /table >

< / a4j:form >
< / rich: panel >
< / ui:composition >
< / html >

Everything works perfectly. But when I click on the command button "#{testPropertyRefreshHelper.updatePropertyFileContentInRemoteServer}" backing bean method is not called. Other components are working properly.

try what it says the article linked: do your session bean scope.

NOTE: when working with Ajax I tend to do the session bean to support extended to have fewer problems with partial and such updates. If you are using JSF 2.0, you could do it view extended to get the same result.

Tags: Java

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