qt - Deleting QStandardItems from QStandardItemModel -

i trying delete qstandarditems qstandrditemmodel using qpersistentindex. items deleted, when iterate through model deleted rows appear without data.

i using following code delete items:

qlist<qpersistentmodelindex> selectedindexes;  foreach (const qmodelindex &modelindex, this->selectionmodel()->selectedindexes()) {     selectedindexes << modelindex; }  foreach (const qpersistentmodelindex &index, selectedindexes) {     qpersistentmodelindex parentindex = index.parent();        model->removerow(index.row(),parentindex);  }  // in function foreach (const qmodelindex &index, this->selectionmodel()->selectedindexes()) { // soemthing , items appear without data shown   // in image below } 

the screenshot