QML TreeView expand() method not working
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Hi there !
I am currently using a QML TreeView based on a c++ model that is built when the user select some data to be showed.
It is working correctly and I can expand or collapse it myself by clicking on the button.I would like it to be fully expanded every time it is charged but I can't get the expand() method to work.
I tried with this line but without success :myTreeView.expand(treeView.rooIndex);
QUESTION : Do I need to implement something in my cpp model for it to work ? Or maybe I just missed something else ?
ps : It might be related to the TreeModel::index() method of the model which I was not sure how to implement.
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Hi Buck,
I was facing the same issue. I "solved" it by using this loop:
function expandAll() { for(var i=0; i < myModel.rowCount(); i++) { var index = myModel.index(i,0) if(!myTreeView.isExpanded(index)) { myTreeView.expand(index) } } }
But it's delicate, because you can't call it while filling the model. Only after it is done. Otherwise the TreeView won't work/look properly. For me TreeView is only a have done Control. I'm missing an attribute in TreeView "alwaysExpanded" or something.
Hope this helps!
Best,
Nexu