After inserting a row in a QAbstractTableModel subclass, the QTableView will not display the new record!

[jdent]

The QAbstractTableModel subclass holds a vector of rows as its data source. When I insert a new row to the vector by inserting into the vector, like this:

auto tmp = this->rows[row];
this->rows.insert(this->rows.begin() + row, tmp);

the QTableView does not display one more row!!

I tried emitting the DataChanged() signal but no success...

[jeremy_k]

See QAbstractItemModel - Subclassing. To add a row to an existing model, QAbstractItemModel::beginInsertRows() and endInsertRows() must be called. dataChanged() is used to announce changes to existing cells.