According to the document of QAbstractItemModel , the rowsAboutToBeRemoved should be emitted before the rows are actually removed. Therefore , the rows should be still accessible.

However, I found that the implementation of ListModel (QQmlListModel) does not follow the rule. The rows are already removed when you got the rowsAboutToBeRemoved signal.

The expected program flow:

QQmlListModel::remove()
--> emit rowsAboutToBeRemoved
--> remove the data
--> emit rowsRemoved

The actual program flow

QQmlListModel::remove()
--> remove the data
--> emit rowsAboutToBeRemoved
--> emit rowsRemoved

There has same problem for rowsAboutToBeInserted and rowsAboutToBeMoved.