[SOLVED] QTreeview Custom model and QSortFilterProxyModel - changing data

[prady_80]

Hi I have data Displayed as a Tree using QTreeView + subclassed QSortFilterProxyModel and subclassed QAbstractItemModel which is a Dom hierarchy of data.
I have overriden the SetData Method in my DOM model and am emiting dataChanged. Due to this it seems that the existing model indexes change as I have a filter criteria applied which for instance removes a row.

Problem:
Example:
A
+------- a1
+--------a2
+--------a3

If I change data on A I am able to change data for a1,a2,a3 if after filtering through the proxy the filter criteria does not filter any of the rows. But if the filter criteria does then I am not able to change any data on a3. What could be the problem?

---

I found out a solution. I was updating proxy indexes and hence once the index for a1 was updated after filtering indexes for a2 and a3 got invalid. Hence I switched to changing the source model and invalidated the proxy... things worked like a charm.
Thanks.