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https://issues.apache.org/jira/browse/MYFACES-1357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13112412#comment-13112412
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Ondrej Svetlik commented on MYFACES-1357:
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1. is your h:commandButton inside h:form?
2. to select the row value for an action, I usually use
f:setPropertyActionListener
> commandButton inside datatable doesn't process action
> -----------------------------------------------------
>
> Key: MYFACES-1357
> URL: https://issues.apache.org/jira/browse/MYFACES-1357
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 1.1.3
> Environment: Windows XP SP2, JDK 1.5 Update 7, TomCat 5.5.17, MyFaces
> 1.1.3
> Reporter: Jose Luis Freire
>
> Consider a simple datatable:
> <h:dataTable
> value="#{userProfile.associations}"
> var="association">
> <h:column>
> <h:commandButton
> action="#{userProfile.selecting}" value="#{association.entityCodeTo}" />
> </h:column>
> <h:column>
> <h:outputText
> value="#{association.dateFrom}"></h:outputText>
> </h:column>
> </h:dataTable>
> Now consider that the list returned by userProfile.associations is null (or
> an empty ArrayList) in the first time it get's called (in ApplyRequestValues
> phase), and is fully populated in the RenderResponse phase (because it
> depends on settings populated in the UpdateModel phase).
> When the commandButton is pressed, the method in the action
> (userProfile.selecting) will not be called.
> The only workaround is implementing the getAssociations like this:
> public List<EntityAssociationData> getAssociations() {
> if (business rule is populated) {
> associationData = getAssociationsFromSystem();
> } else
> if (associationData == null) {
> /* We must always return a arraylist with at
> least one element */
> associationData = new
> ArrayList<EntityAssociationData>();
> EntityAssociationData entityAssociationData =
> new EntityAssociationData();
> associationData.add(entityAssociationData);
> }
> }
> We *really* need that bogus entry, so the ArrayList has a size > 0, or else
> the userProfile.selecting() method will never be called.
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