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From Phuu Tek <>
Subject Re: [Trinidad] Possible to skip certain stops in a train model?
Date Thu, 03 Nov 2011 05:07:01 GMT
Hi Pavitra,

Thanks for replying.  I just would like to learn more on how I could
implement my use case if you may.

          <tr:train binding="#{editor.component}" var="foo"
            <f:facet name="nodeStamp">
              <tr:commandNavigationItem text="#{foo.label}"




I have look at the Demo app of the Apache Trinidad component guide and I
notice those code above.
The disabled property of the commandNavigationItem points to the readOnly
method of the underlying ProcessMenuModel.

My question are these:
1.  How  will I get a handle to the currently active navigation item?
2.  My question 2 is related to question 1, after getting a handle to the
current navigation item, how can I override the ProcessMenuModel
     so that I could disable the other navigation item so that I could
prevent the user from navigating thru them.

I have attached also a sample pseudocode of what I want to accomplish.
Please see my attached file.

Kindly advise if my question is unclear and I'll be glad to supply more
I tried posting with forums but I had no luck so I just tried the mailing
list. [?]

Thanks for sharing your time as it is higly regarded.


On Thu, Nov 3, 2011 at 2:35 AM, Pavitra Subramaniam <> wrote:

> Hello Phuu,
> On 11/2/2011 2:44 AM, Phuu Tek wrote:
>> Hi,
>> I am looking at implementing my own custom Train Model using my custom
>> ProcessMenuModel
>> public ProcessMenuModel getTrainModel() {
>> }
>> However, I have a specific use case wherein I should be able to skip
>> certain stops in my train.
>> Say for example, I have seven stops then on Step 2, I choose something
>> from that page.
>> Is it possible to disable Steps 3 and 4 programatically so that user wont
>> be able to navigate to that page?
>> Step 5, 6 and 7 should still be available.
> You most certainly can, by setting an EL for the disabled attribute of the
> tr:commandNavigationItem .The EL will obviously return 'true' for the stops
> you want disabled.
> Thanks
> Pavitra
>> Thanks

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