I personally think it is a very useful widget to have, think of all the
uses of the gtk TreeView widget, it has become almost ubiquitous in gtk
apps... It is very flexible (it works as a tree, a list, a grid or a
combination) and it is particularly useful for representing and
organizing tabular data (particularly when you can specify columnwise
aggregation operations and allow for D&D regrouping).
Why don't you give it a try, the idea of the widgets framework is to be as easy to extend as possible.
there is an "abstract" grid so all you'll have to do is implement the tree part.
the first link shows how to use it the second is the code itself.
http://trac.turbogears.org/turbogears/wiki/IntroductionToWidgets
http://trac.turbogears.org/turbogears/browser/trunk/turbogears/widgets/datagrid.py
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- [TurboGears] Re: Tree-List control Jorge Vargas

