On Apr 11, 2005 8:04 PM, Ray Clark <[EMAIL PROTECTED]> wrote:
I am using MyFaces 1.0.8 for my page and the rendered
attribute for the commandButton seems to work just
fine.
Here is my commandButton on the JSP:
<h:commandButton id="addButton"
action="">rendered="#{taskBean.rendered}" value="Add"/>
Here are the managed bean methods:
public boolean isRendered() {
return true;
}
public String addTaskButton() {
TaskBO taskBo = TaskBO.getInstance();
try {
// do nothing for this example
} catch (Exception e) {
logger.error(e.getMessage(), e);
return "internalError";
}
ApplicationUtils.setUserMessageByResourceKey(
"com.javawebapps.todolist.infomsg.addSuccess");
task = null;
return "taskNew";
}
The addTaskButton method gets called every time that I
press the button. One thing though, I have client
side state saving and the bean has session scope.
I know this didn't answer your question but maybe this
will help.
--- CupertinoIndian <[EMAIL PROTECTED]> wrote:
>
> Allright, I found the source of the problem. I also
> have a web project (wsad
> project) where I can reproduce this easily.
>
> Anyway here is the problem. I have a JSP called
> dummy.jsp which is as follows:
>
------------------------------------------------------------------------
> <%@ page contentType="text/html" %>
>
> <%@ taglib uri="http://java.sun.com/jsf/html"
> prefix="h" %>
> <%@ taglib uri="http://java.sun.com/jsf/core"
> prefix="f" %>
>
> <HTML>
>
> <BODY>
> <f:view>
> <h:form>
> <!-- jsp:include page="header.jsp" / -->
>
> <h:panelGrid columns="2">
>
> <h:outputText value="Process" />
> <h:outputText
> value="#{clientTaskHandler.clientTask.process}" />
> <h:outputText value="Name" />
> <h:outputText
> value="#{clientTaskHandler.clientTask.name}" />
> <h:outputText value="Id" />
> <h:outputText
> value="#{clientTaskHandler.clientTask.id}"
> />
> </h:panelGrid>
>
> <h:commandButton id="nextButton" value="Next"
> action="">> rendered="#{clientTaskHandler.renderNext}" />
>
> </h:form>
> </table>
> </f:view>
> </body>
> </html>
>
------------------------------------------------------------------------
>
> Very simple JSP right? Now focus on the command
> button. The problem is in the
> clause
> rendered="#{clientTaskHandler.renderNext}"
> The button is rendered correctly as
> clientTaskHandler.isRenderNext() returns
> true. So far so good? Now if I click the button, the
> action
> clientTaskHandler.navNext() is NEVER CALLED. The JSP
> is displayed again with
> null values.
>
> I tried to change
> rendered="#{clientTaskHandler.renderNext}"
> to
> rendered="true"
> and guess what? Everything works fine!!
>
> So basically if the rendered value is pulled from an
> _expression_, the rendering
> is improper and clicking the button does not invoke
> the specified action.
> However if rendered value is statically specified on
> the page, everything works
> fine.
>
> If you need the war file, I can easily export one
> for you.
>
> Thanks for help.
>
>
>
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