Unsolved Huge TreeView hack
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I am trying to finish a dialog that uses a filesystem related TreeView object. I use the QFileSystemModel (an object derived from this) for my model. I found during testing that I cannot get the TreeView to display some directories both on windows and linux. It is like it would not fetch them. So while testing I hooked the same model and selected index into a ListView/DelegateModel like this:
ListView { id: hacky_listview visible: false height: 100 width: 100 model: hacky_delegatemodel DelegateModel { id: hacky_delegatemodel model: treeview.model rootIndex: treeview.selectedindex onRootIndexChanged: { //rootIndex = treeview.selectedindex } delegate: Item { height: 10 width: 100 Text { text: fileName } } } }
I found when I did this that the TreeView all of a sudden started showing all entries! All I did was add a consumer of the same model. So as the name of my object suggest I have this hacky solution to get the model to populate itself properly. I have no idea where the problem lies, but I suspect TreeView is not doing something that the ListView/DelegateModel does.
I am using Qt 5.12.x so I am still using the QuickControls 1 TreeView. I do not know if the newer TreeView from the later version of Qt will fix this issue. We are standardized on 5.12.x for now. I did search the bug reports for Qt and could not find anything related to this issue. I am curious if anyone else has noticed this problem.