Hello, I have a TreeView that is displaying a lisi, and I'm looking for a way to group all items with the same value in a certain column by making them children of a 'category' node, and I can do this using a TreeStore. I will need to do the same thing to a tree at some point, but not grouping the children of the top level.
However, I also need to be able to switch between grouped and ungrouped views.The easy way seems to be to rebuild/rearrange the model when the 'mode' changes, though I'm unhappy with this as it breaks the model/view separation and could cause a performance hit. I see two ways to do this, using either a TreeStore, which as far as I can see doesn't allow reparenting rows, or a NodeStore - reparenting rows is possible, but I /think/ the model involves more interop. Which is likely to be faster? Is there any better way to do what I'm trying to do? Another route I've considered is writing a TreeModel that will group rows in a child TreeModel by a given column, like the filtering and sorting TreeModels. This would be more generally useful, and keeps the model separation intact, but are there any problems I'd need to be aware of when writing a managed TreeModel? Would it be best to sit it on top of the filtering TreeModel, as presumably this already does optimised sorting? And would there be any interest in using such a TreeModel? Thanks, Michael Hutchinson _______________________________________________ Gtk-sharp-list maillist - [email protected] http://lists.ximian.com/mailman/listinfo/gtk-sharp-list
