Hi Andrew! On Wed, 29 Mar 2000, Andrew Diller wrote:
Hello:
I'm not getting dtml-let. I use it to create a variable that I can access, correct?
Say I want to initialize a counter, and change it from 0 1 each iteration of a loop.
This will print out rows of a table with alternating background colors:
<dtml-let x=0> </dtml-let>
<dtml-in "getElementsByTagName('book')" >
<dtml-if x==0> <tr bgcolor="DDEEAC"> <dtml-else> <tr> </dtml-if>
write out some html
</tr>
<dtml-if x==0> <dtml-let x=1> </dtml-let> <dtml-else> <dtml-let x=0> </dtml-let> </dtml-if>
</dtml-in> </table> </dtml-with>
<dtml-let> tags only set that variable within the <dtml-let>context</dtml-let> tags. The task you wish to do would much easily done using the variables set by dtml-in. Eg <dtml-var sequence-index> will print out the 'count' if you like for the list. <dtml-if sequence-start> </dtml-if> (from memory?) will evaluate if it is the first iteration of the loop. <dtml-if sequence-even> and <dtml-if sequence-odd> will evaluate odd and even iterations of the loop, which is what it apears you want todo. Check out the zope quick reference document for documentation on this http://www.zope.org/Members/ZQR. Cheers, Benno