[richfaces-issues] [JBoss JIRA] Resolved: (RF-6862) RF picklist does not update target list after onchange event

Mon Apr 20 13:27:22 EDT 2009

     [ https://jira.jboss.org/jira/browse/RF-6862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nick Belaevski resolved RF-6862.
--------------------------------

    Resolution: Won't Fix
      Assignee: Tsikhon Kuprevich

You have a bug in the page code, here is the working one:

<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://richfaces.org/a4j" prefix="a4j"%>
<%@ taglib uri="http://richfaces.org/rich" prefix="rich"%>

<html>
<head>
<title>Picklist Test Page</title>
</head>
<body>

<f:view>
	<h1>Test Picklist Refresh</h1>

	<h:messages style="color: red" />

	<h:form id="pickListForm">

		<h:selectOneListbox id="applicationSelectionList"
			styleClass="ApplicationSelectionList"
			value="#{testPickList.selectedApplication}" size="8"
			valueChangeListener="#{testPickList.loadRoleComponentsForApplicationSelection}">
			<f:selectItems id="applicationList"
				value="#{testPickList.applications}" />
			<a4j:support ajaxSingle="true" event="onchange"
				reRender="rolePicklist" />
		</h:selectOneListbox>

		<rich:pickList id="rolePicklist" styleClass="RolePicklist"
			value="#{testPickList.assignedRoles}">
			<f:selectItems id="assignedRoles"
				value="#{testPickList.availableRoles}" />
		</rich:pickList>

	</h:form>
</f:view>
</body>
</html>

This page works ok with TestRichFacesPicklistWithoutBinding application; JSF 1.2_12; RF 3.3.0.GA.

Please ask at users forum in the future before posting JIRA issues if you are not 100% sure that's a bug.

> RF picklist does not update target list after onchange event
> ------------------------------------------------------------
>
>                 Key: RF-6862
>                 URL: https://jira.jboss.org/jira/browse/RF-6862
>             Project: RichFaces
>          Issue Type: Bug
>    Affects Versions: 3.2.2, 3.3.0
>         Environment:  JBoss AS 4.2.3 (Ubuntu Linux 8.04)
>            Reporter: Brendan Farragher
>            Assignee: Tsikhon Kuprevich
>         Attachments: TestRichFacesPicklistWithBinding.tar, TestRichFacesPicklistWithoutBinding.tar
>
>
> The RichFaces picklist component does not re-load it's pre-selected (target) data correctly when an onchange event of a dependent selectonelistbox component is raised. If a valuechangelistener method is set on the selectonelistbox, and that method loads the picklist's source and target lists with new data, the target list is not populated when the page is re-displayed (in this case, the target list in the backing bean maps to the value attribute of the picklist tag). I even tried wrapping the picklist in an a4j:outputPanel with an a4j:support event=onchange reRender=pickListName tag placed inside of the selectonelistbox tag, but the target list is never populated.
> I have a JSF test application developed that I can provide you with that demonstrates the problem, and a second JSF test application that contains a workaround using a bound HtmlPickList (the workaround is not really appropriate for Seam integration, though). (Please update the JIRA with a forwarding address if you would like my test apps)
> Please note that this bug has more important implications for Seam integration, since JSF component binding is discouraged. As a result, the value attribute of the picklist (the target data) needs to be refreshed via the picklist tag value attribute (or via some a4j help).

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