Mittal Bhoigade wrote:
> alrite need to give some more details, assumming u r reading from
> bottom up
>
> 1) There is VO called Transaction - which are added to collection -
> and collection is returned via getCurrentTrans
> 2) Transaction VO has member of type ITreeContentProvider - i.e each
> Transaction (row in a html view) has a tree
> 3) I am able to display roots exception below is generated when plus
> sign is clicked
>     >> what gets invoked when plus sign is clicked - I thought it was
> getChildren on Folder

Well, the only slightly weird thing i see is the value binding of your
tree...
I'd bind it to a temp property

But i don't think this is the cause of your problems...

Have you tried making a single tree work before adding that For loop?
Did it work?
>
> Thanks
> Mittal
>
>
> On 11/9/06, *andyhot* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
> wrote:
>
>     Mittal Bhoigade wrote:
>     > intially tree is rendered with root and plus sign but when I
>     click on
>     > plus sign of tree
>     > I am getting exception source is null -  "source is null for
>     > getProperty(null, "0")"
>
>     You have to find out which line provokes this... It looks like an
>     array
>     access...
>     as if when executing currentTrans[tranIndex]
>
>     Also, do you need the for component? Why don't you use its value
>     parameter?
>     How is getCurrentTrans() implemented?
>
>     > I checked for treeContentProvider implementation - its getting
>     filled in..
>     > any idea's - I can send you more details if required
>     >
>     > // reads collection
>     >
>     > <component id="transaction" type="For">
>     >     <binding name="source" value="currentTrans"/>
>     >     <binding name="element" value="literal:tr"/>
>     >     <binding name="index" value="tranIndex"/>
>     >     <binding name="class" value="beans.evenOdd.next"/>
>     > </component>
>     >
>     > // reads contentprovider from collection
>     >
>     > <component id="tree" type="tacos:Tree">
>     >     <binding name="contentProvider"
>     > value="currentTrans[tranIndex].contentProvider"/>
>     >     <binding name="value" value="currentTrans[tranIndex].item"/>
>     >     <binding name="nodeLinkAjax" value="ognl:false" />
>     > </component>
>     >
>     >
>     > // html
>     > <div jwcid="tree" style="overflow: auto; width: auto; height:
>     > auto;"><span jwcid="@Insert" value="ognl: item.name
>     <http://item.name>
>     > <http://item.name>"/></div>
>     >
>     > --
>     > Regards
>     > Mittal Bhiogade
>     >
>     ------------------------------------------------------------------------
>     >
>     >
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>
>     --
>     Andreas Andreou - [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> -
>     http://andyhot.di.uoa.gr
>     Tapestry / Tacos developer
>     Open Source / J2EE Consulting
>
>
>     -------------------------------------------------------------------------
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>     security?
>     Get stuff done quickly with pre-integrated technology to make your
>     job easier
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>
> -- 
> Regards
> Mittal Bhiogade
> ------------------------------------------------------------------------
>
> -------------------------------------------------------------------------
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> Get stuff done quickly with pre-integrated technology to make your job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
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> ------------------------------------------------------------------------
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-- 
Andreas Andreou - [EMAIL PROTECTED] - http://andyhot.di.uoa.gr
Tapestry / Tacos developer
Open Source / J2EE Consulting 


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