- How to build action parameter expression for s:butto

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- How to build action parameter expression for s:butto

- How to build action parameter expression for s:butto

2007-08-09 - By lpmon

Back
I need to build a button to pass an argument to an action method. I can hard
code the parameter and all is fine. I just cannot figure how to dynamically
build it with tags.

Key point: I need to use el to specify the Seam "named" method and I also need
to use el to specify its argument. This creates a nesting scenario that I
cannot figure out. The track var is the object

<ice:dataTable id="trackList"
var="track"
value="#{trackList.resultList}"
columnClasses="allCols"
rendered="#{not empty trackList.resultList}">
...
...
<ice:column>
<f:facet name="header">Click to Play</f:facet>
<s:button value="Play" id="play" action="#{connectedUser
.playMediaId(track.id)}"/>
</ice:column>

Track.id is passed as a null string to the method. I created a different
method that takes a track object and tried passing track. I get a null object
passed to the method.

I am adapting the standard SeamGen pages for my app. I can get it to work if I
use the select in the seamgen'd trackList page which passes the selected track
to the track page. Then on that page I use trackHome.instance as the parameter
to the method that accepts a track object. This works.

One key difference between the two pages is in the tracklist page (non-working
one) the data is provided by the var from ice:dataTable

I want to get this to work in the trackList page inside the dataTable

View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic
&p=4072738#4072738

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode
=reply&p=4072738
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