my problem is still the same. I am trying to use your Stitch Demo with
gridcollapse to display nested grids. This worked okay, then I suddenly got
this error message a wrote you about.
/*
Hi,
i have been trying to solve this problem for weeks now without any success. I
have some difficulties using your stich-demo.
i get the error message: org.apache.tapestry5.dom.Text cannot be cast to
org.apache.tapestry5.dom.Element
it comes from GridCollapse.java in the function:
private Element findTable(Element container) {
List<Node> topChildren = container.getChildren();
Element containingDiv = (Element) topChildren.get(topChildren.size()-1);
//this line causes the error
Element table = containingDiv.find("table");
if (table == null) {
throw new RuntimeException("Could not find table element");
}
return table;
}
}
*/
I just dont get it.
Will
De : Lance Java <lance.j...@googlemail.com>
À : Tapestry users <users@tapestry.apache.org>
Envoyé le : Mardi 18 juin 2013 9h35
Objet : Re: DefaultTreeModel doesnt user encoder to get the node
Even if this functionality changes, I still think that DefaultTreeModel is
flawed.
DefaultTreeModel requires the roots to be instantiated for the model to
exist (it's part of the constructor). If you source your data from a
database and don't store the model in the session or as a singleton this
will cause unnecessary hits to the database. For example when expanding a
tree node, the model is required but the roots are not.
Luckily, TreeModel is an interface and DefaultTreeModel is optional. You
can use my LazyTreeModel or similar.
