Button enable/disable in Master-Detail table

Question

I am using JDeveloper 11.1.1.3.0 and I have a page fragment (.jsff) which includes a Master-Detail table and the Master table has 3 buttons that get enabled/disabled based on the specific string within a column say, if the column has value, 'DRAFT', the buttons should be enabled. In all other cases, the buttons should be disabled.
The above mentioned scenario works in cases where the table has more than one row in the table; but in two cases the buttons don't get enabled even though the column has 'DRAFT' as its value:
     1. when the table first loads with the data populated in the table; clicking on the first row doesn't trigger the buttons, clicking on any other row triggers the buttons
     2. when there is only one row in the table
To resolve this, I tried looking at the logs for any specific information regarding the buttons getting enabled or disabled. I couldn't find info on setting up a breakpoint for the commandbutton and the disabled property which would enable me to determine whether it is being triggered as soon as the table gets populated or not.
How can I get the buttons to work per my requirements? Also, can I set breakpoints for the button and/or evaluate disabled property's EL expression?
Thanks in advance.

Answer 1

Navaneeth:
The buttons are part of panelCollection which exists in panelHeader. As the below code demonstrates,
1. Buttons are defined in the toolbar (t2) in panelCollection (pc1)
2. Each buttons' partialTrigger is set to the table (md1)
3. Tables' (md1) partialTrigger is set to the toolbar (t2).
<af:panelHeader text="#{viewcontrollerBundle.HISTORIC_PANEL_SPECS__TESTER_S}" id="ph2">
        <af:panelCollection id="pc1" styleClass="AFStretchWidth">
          <f:facet name="menus"/>
          <f:facet name="toolbar">
            <af:toolbar id="t2" partialTriggers="t2">
              <af:commandButton actionListener="#{bindings.promotePanelSpec.execute}"
                                text="#{viewcontrollerBundle.PROMOTE_PANEL_SPEC}"
                                id="cb1" icon="/Images/up16.png"
                                partialTriggers="md1"
                                disabled='#{bindings.Status!="DRAFT"}'
                                immediate="true"/>
              <af:commandButton text="#{viewcontrollerBundle.ADD_TESTER_SPEC}" id="cb2"
                                partialTriggers="md1"
                                icon="/Images/action_add.gif"
                                actionListener="#{bindings.CreateWithParams.execute}"
                                action="addTestSpec"
                                disabled='#{bindings.Status!="DRAFT"}'/>
              <af:commandButton actionListener="#{PanelSpecTesterSpec.deleteTesterSpec}"
                                text="#{viewcontrollerBundle.REMOVE_TESTER_SPEC}"
                                id="cb3" partialTriggers="md1 ::pc2:t1"
                                icon="/Images/delete.png"
                                disabled='#{bindings.Status!="DRAFT"}'/>
            </af:toolbar>
          </f:facet>
          <f:facet name="statusbar"/>
          <af:table id="md1"
                    rows="#{bindings.PanelSpecTesterSpecView1.rangeSize}"
                    fetchSize="#{bindings.PanelSpecTesterSpecView1.rangeSize}"
                    emptyText="#{bindings.PanelSpecTesterSpecView1.viewable ? 'No data to display.' : 'Access Denied.'}"
                    var="row"
                    value="#{bindings.PanelSpecTesterSpecView1.collectionModel}"
                    rowBandingInterval="0"
                    selectedRowKeys="#{bindings.PanelSpecTesterSpecView1.collectionModel.selectedRow}"
                    selectionListener="#{bindings.PanelSpecTesterSpecView1.collectionModel.makeCurrent}"
                    rowSelection="single" partialTriggers="::t2"
                    filterVisible="true" displayRow="selected"
                    filterModel="#{bindings.ProductIdPanelSpecVersionToolNameQuery.queryDescriptor}"
                    queryListener="#{bindings.ProductIdPanelSpecVersionToolNameQuery.processQuery}">
            <af:column headerText="#{bindings.PanelSpecTesterSpecView1.hints.ProductId.label}"
                       sortProperty="ProductId" sortable="true" id="c39"
                       filterable="true">
              <af:outputText value="#{row.ProductId}" id="ot28"/>
            </af:column>
            <af:column headerText="#{bindings.PanelSpecTesterSpecView1.hints.Status.label}"
                       sortProperty="Status" sortable="true" id="c43"
                       filterable="true">
              <af:outputText value="#{row.Status}" id="ot40"/>
            </af:column>
          </af:table>
     </af:panelCollection>
</af:panelHeader>The fact that the above code works when there are multiple rows tells me that buttons are having trouble reading the first row of the table.
Also, I changed the displayRow property for the table from "selected" to "first" but no luck either.