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