Re: Newbie Question: Are HTML attributes always stripped for tables?

"Diez B. Roggisch" <[email protected]> Tue, 12 Aug 2003 13:32:09 +0200

Newsgroups	gmane.comp.java.enhydra.barracuda.general
Message-ID	<[email protected]>

Jacob LauemÃ¸ller wrote:

>Hi all,
>
>I have been experimenting a bit with Barracuda and have run into a problem. I 
>have an HTML page looking somewhat like
>
><html>
>    ...
>    <table id="resultTable">
>       <tr>
>          <td align="center">Column A</td>
>          <td align="right">Column B</td>
>       </tr>
>    </table>
>
></body>
>
>I have created a table model and attached a DefaulTableView to a BTable 
>instance using this model. When I run my servlet, the table contents are 
>replaced by the values present in the model (as expected) but the "align" 
>attributes on the <td> elements are gone. What am I doing wrong?
>  
>
Nothing. The BTable doesn't inspect your dom and draws conclusions out 
of it. While this seems awkward, its actually a limitation that can't be 
overcome. Lets say we have a table like the one you gave above. Now if 
the TableModel contains three columns - which alignment do you want to 
chose for the one column not specified?

My expirience is that usually the BComponents like BList, BTable and 
alike are to somewhat limited use - which surely doesn't apply to 
barracuda as a whole! Its just that the layout-concerns usually don't go 
well with a purely data-driven approach like BTable.

Now of course there is a solution to this - use BTemplate! If you have 
data organized in rows of fixed column size, its as easy as this:


    <table id="resultTable">
       <tr class="Dir::Iterate_Start.ModelName Dir::Iterate_Next.ModelName">
          <td align="center"><span class="Dir::Get_Data.ModelName.ColA">Column A</span></td>
          <td align="right"><span class="Dir::Get_Data.ModelName.ColB">Column B</span></td>
       </tr>
       <tr class="Dir::Iterate_End.ModelName Dir::Discard">
          <td align="center">Column A</td>
          <td align="right">Column B</td>
       </tr>
    </table>


Actually not much more to write, but full control over the layout here.

Regards,

Diez