How do I create data-driven linkbuttons whose visibility is controlled from the front end?

Question

I've made a component based on a mx:TitleWindow that contains linkbuttons that I'm using as a context-menu.
The TitleWindow component contains link buttons like this:
[Bindable]
private var _showEmailThis:Boolean = false;
[Bindable]
private var _showApproveThis:Boolean = false;
[Bindable]
private var _showReviewThis:Boolean = false;
<mx:LinkButton id="lnkEmailThis" 
               visible="{_showEmailThis}" 
               includeInLayout="{_showEmailThis}" 
               click="lnkEmailThis_click()" 
               label="Email this!" />
<mx:LinkButton id="lnkApproveThis" 
               visible="{_showApproveThis}" 
               includeInLayout="{_showApproveThis}" 
               click="lnkApproveThis_click()" 
               label="Approve this!" />
<mx:LinkButton id="lnkReviewThis" 
               visible="{_showReviewThis}" 
               includeInLayout="{_showReviewThis}" 
               click="lnkReviewThis_click()" 
               label="Review this!" />
This component contains a large number of links and is re-used by multiple modules in the same application.
Within each module, this component is used when a user clicks on a row in a datagrid.
The code looks like this:
In "Requests" module:
private function dgRequests_click(event:MouseEvent):void
    menu.showApproveThis = true;
    menu.showReviewThis = true;
In "Performance" module:
private function dgPerformance_click(event:MouseEvent):void
    menu.showEmailThis = true;
    menu.showReviewThis = true;
As you can see, the visibility of individual linkbuttons is controlled within each module by setting boolean properties.
If I alter this component to use a renderer, how can I control the visibility of the linkbuttons from the code in each module (there are over a hundred links with different functionality - not every link will be used in each module)? Note: it is not known from the back-end which grid within which module uses which link. This is set in the front end within each module's actionscript file.
e.g., if the XML looks like this:
<links>
   <link>
      <label>Email This</label>
      <visible>_showEmailThis</visible>
   </link>
   <link>
      <label>Approve This</label>
      <visible>_showApproveThis</visible>
   </link>
   <link>
      <label>Review This</label>
      <visible>_showReviewThis</visible>
   </link>
</links>
and I set the Email link to show in the module like this:
private function dgPerformance_click(event:MouseEvent):void
    menu.showEmailThis = true;
How do I make it take effect? Is there a way to control the visibility of a linkbutton within an item renderer in a component from the module that uses that component? Is there something like reflection in the Flex framework?

Answer 1

Put a single frame sequence structure around your stop button and then wire from the error cluster going into the error handler to the edge of the sequence structure. Now your code will stop at the end of the current iteration. To see why this works, watch you code execute with execution highlighting turned on and review the section of the manual talking about "Dataflow".
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps