How copy data from one model view to another

[Lykurg]

Well I don't know the architecture of your code, but instead of creating the model each time the function is called do something like that

QStringList newData; // or where ever your data is
QStringListModel* model = qobject_cast<QStringListModel*>(ui->listtableView_2->model());
QStringList old = model->stringList();
old <<  newData;
model->setStringList(old);

QStringList newData; // or where ever your data is
QStringListModel* model = qobject_cast<QStringListModel*>(ui->listtableView_2->model());
QStringList old = model->stringList();
old <<  newData;
model->setStringList(old);

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