Hi all, i'm currently in a project where i try to access a lazy C++ model from within QML.
The basics are working well but when it comes to setting the currentIndex it becomes a bit odd. If i implemented everything well the lazy model always reports the element count it currently has loaded by rowCount(). If the List comes to the end, it will call canFetchMore() and if true also fetchMore() to get more elements. But when somebody tries to set the currentIndex to something which is currently not loaded into the lazy model, the data will not be loaded automatically and the Highlight set accordingly. I looked it up at the source code and the code of the QML Views are always checking the currentIndex to be smaller than the model's count. Because of this the View rejects the currentIndex instead of trying to load the full content of the model to determine whether the index is really out of bound. Some my question is, is this a Bug in QtDeclarative ? If so what do you think should be the right behavior ? Loading all the content just to check whether the index is in bound seems to me a bit too performance consuming. Do you think a other implementation of lazy models for QML should be done than this should be documented somewhere. Best Regards Dominik _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
