hx:commandExButton inside hx:dataTableEx doesn't work

Question

I have a very strange case. If I put my <hx:commandExButton> outside of <hx:dataTableEx>, when I click on the button backend (page bean) code triggers (doButton1Action method), but when I put my <hx:commandExButton> inside <hx:dataTableEx> (inside <hx:columnEx>) and I click on that button - backend code (doButton1Action method) doesn't trigger (execute), but the form only submits/refresh and the same form shows again.
My code is simple:
<hx:dataTableEx id="tableOsebe" value="#{pc_vseOsebe.osebeList}" var="varosebeList">
<hx:columnEx id="columnPodrobnosti">
     <f:facet name="header">
          <h:outputText styleClass="ap_head" value="Potrdila" />
     </f:facet>
     <hx:requestLink styleClass="requestLink" id="link1" action="#{pc_vseOsebe.doLink1Action}">
          <h:outputText id="text1" styleClass="outputText" value="Podrobnosti"></h:outputText>
     </hx:requestLink>
     <hx:commandExButton type="submit" value="Submit"
          styleClass="commandExButton" id="button1" action="#{pc_vseOsebe.doButton1Action}"></hx:commandExButton>
</hx:columnEx>
</hx:dataTableEx>
public String doButton1Action() {
     int index = getTableOsebe().getRowIndex();
     return "";
public String doLink1Action() {
     int index = getTableOsebe().getRowIndex();
     return "";
}As you can see, I have also tried adding <hx:requestLink> and its backing doLink1Action() method into <hx:columnEx> of <hx:dataTableEx> and situation is a little better. The code executes, but getTableOsebe() always return null which causes NullPointerException.
Strange thing is that I have similar code in another JSF page and it works fine. I have spent days trying to find differences, but those two pages are very the same and I have failed to spot any important differences.
Please help.
P.S. I am using IBM implementation of JSF through Rational Application Developer 7 and WebSphere 6.1

Answer 1

milantomic123 wrote:
I have a very strange case. If I put my <hx:commandExButton> outside of <hx:dataTableEx>, when I click on the button backend (page bean) code triggers (doButton1Action method), but when I put my <hx:commandExButton> inside <hx:dataTableEx> (inside <hx:columnEx>) and I click on that button - backend code (doButton1Action method) doesn't trigger (execute), but the form only submits/refresh and the same form shows again.Put the bean in session scope. If it works, then either your data loading logic is wrong, or there is a conversion/validation error occurred which missed your attention. To fix the first, just make sure that getOsebeList() returns exactly the same during the apply request values phase of the form submit request as it returned during the render response phase of the previous request for display. To fix the second, add <h:messages /> to the page to take note of them all. If you're using JSF 1.2, then you should be able to note the missing message in the appserver logs.
P.S. I am using IBM implementation of JSF through Rational Application Developer 7 and WebSphere 6.1IBM doesn't have a JSF implementation. It only has some simple component libraries. If I am correct, RAD7 by default ships with an early Sun JSF RI 1.1. Not really related to your problem, but I'd recommend to upgrade this to at least 1.x_02, available here: [http://javaserverfaces.dev.java.net]. Get 1.1_02 if you're using Servlet 2.4, or get the newest 1.2_x if you're using Servlet 2.5.