[Zope] DTML-TREE

[Chris Withers]

> When using the DTML-IN tag you can use DTML-ELSE when no objects to the
> expression are found. Is there also something with the DTML-TREE tag?

<dtml-if myobject>
 <dtml-tree myobject>
  ...
 </dtml-tree>
<dtml-else>
 ...put your else stuff here...
</dtml-if>
 
> ie. How do you know if DTML-TREE has no objects fullfilling to the
> braches_expr and thus returns no tree?

the branches_expr is used to find branches. If the object you supply to the tree tag has no objects
fulfilling the brancehs_expr then you'll just get a tree with one root node.

> Is there a way to change the look of a tree?

check out:

http://classic.zope.org:8080/Collector/374/view
http://classic.zope.org:8080/Collector/375/view

They may be of some help but I'm not sure exactly what they do :S

Chris