How to check if no treeitem is selected in the tree view

summit

This is how i get the selected item in the tree view.

QModelIndex index = currentTreeView->selectionModel()->currentIndex();

How would i get to know if no item is selected in the tree view.

Kent-Dorfman

Assuming a QTreeView, I believe selectionModel() is not relevant. The inherited abstract class contains direct access to currentIndex() and the returned object contains status methods for the index.

JonB

@summit
@Kent-Dorfman may know more than I, but be careful: in Qt current items are not necessarily the same as selected items....

You can try his way. For my part I would first have looked at currentTreeView->selectionModel()->selectedIndexes().count() == 0, or directly from currentTreeView->selectedIndexes().count() == 0.

Christian Ehrlicher

@JonB said in How to check if no treeitem is selected in the tree view:

in Qt current items are not necessarily the same as selected items....

correct, and it's also explained in the docs: https://doc.qt.io/qt-5/model-view-programming.html#current-item-and-selected-items

JonB

@Christian-Ehrlicher
Oh, excellenty to the reference! Current item and selected items Is that subsection new in the docs, in the past I didn't find that explanation?

Christian Ehrlicher

@JonB said in How to check if no treeitem is selected in the tree view:

Is that subsection new in the docs, in the past I didn't find that explanation?

It's already there since some years... :)
https://doc.qt.io/archives/qt-4.8/model-view-programming.html