I made use of QAbstractTableModel to show data retrieved through QNetworkAccessManager in a QTableView, it works well, the only issue is that if the data is changed the model doesn't "refresh" until I click on the tableview or scroll through the table.

header:
Qt Code: 
  1. class ModelLClienti:public QAbstractTableModel{
  2.     Q_OBJECT
  3. public:
  4.     ModelLClienti(QObject *parent=0);
  5.  
  6.     int rowCount(const QModelIndex &parent) const;
  7.     int columnCount(const QModelIndex &parent) const;
  8.     QVariant data(const QModelIndex &index, int role) const;
  9.     QVariant headerData(int section, Qt::Orientation orientation, int role) const;
  10.     void setLista(QList<QString> lista);
  11. private:
  12.     QList<QString> listaCli;
  13. };
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source:
Qt Code: 
  1. ModelLClienti::ModelLClienti(QObject *parent):QAbstractTableModel(parent){
  2. }
  3.  
  4. int ModelLClienti::rowCount(const QModelIndex &parent) const{
  5.     Q_UNUSED(parent);
  6.     return listaCli.size()-1;
  7. }
  8. int ModelLClienti::columnCount(const QModelIndex &parent) const{
  9.     Q_UNUSED(parent);
  10.     return 2;
  11. }
  12. QVariant ModelLClienti::data(const QModelIndex &index, int role) const{
  14.  
  15.     if (!index.isValid())
  16.         return QVariant();
  17.  
  18.     if (index.row() >= listaCli.size() || index.row() < 0)
  19.         return QVariant();
  20.  
  21.     if (role == Qt::DisplayRole) {
  22.         l=listaCli.at(index.row()).split(',');
  23.         if(index.column()==0)
  24.             return l[0];
  25.         if (index.column() == 1)
  26.             return l[1].toUpper();
  27.     }
  28.     return QVariant();
  29. }
  30. QVariant ModelLClienti::headerData(int section, Qt::Orientation orientation, int role) const{
  31.     if (role != Qt::DisplayRole)
  32.         return QVariant();
  33.  
  34.     if (orientation == Qt::Horizontal) {
  35.         switch (section) {
  36.         case 0:
  37.             return tr("clientId");
  38.         case 1:
  39.             return tr("Client");
  40.         default:
  41.             return QVariant();
  42.         }
  43.     }
  44.     return QVariant();
  45. }
  46. void ModelLClienti::setLista(QList<QString> lista){
  47.     listaCli=lista;
  48. }
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I need to change the data inside the model and afterwards, show in the tableview.