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[SOLVED] Persisiting QTreeView's header between model updates
I'm migrating my project from QTreeWidget to QtreeView. With a widget there's no problem with the header - it lives as long as the widget does, so I just save its geometry and state to settings when quitting app and restoring when the app is starting.
With QTreeView, however, it seems that I can only set header by doing model->setHorizontalHeaderLabels, and it has to be done again after model()->clear(), i. e. after every model update. So I'd have to recreate header view and store / restore its state and geometry every time. Is there a better way? Am I missing something?
You can implement headerData in your custom model to return the headers for your view to show
Hi, thanks for the quick reply. I'm afraid that won't help. What I meant is persisiting header columns sizes, sort order, that kind of states. That must be done on view level, not model.
Sorry I misunderstood what you said, you can then react on the modelAboutToBeReset signal, store the information you want to keep, then on reset you restore them
Thanks, that's exactly what I was looking for!