Hi guys

In this function im trying to connect each QTreeWidgetItem with its corresponding query,
once i select an item a query result in tableview model is shown.

what i want is that when i select a new item the shown tableview hide and new one appears with a new result. what i have until now is that each item i select a new tableview appears . I want to see only one tableview.

here is my function

Qt Code: 
  1. void MainWindow::DocumentTable()
  2.     {
  3.     tableview = new QTableView;
  4.     query = new QSqlQueryModel(this);
  5.  
  6.     foreach(it,treeWidget->selectedItems())
  7.     {
  8.         for (int col=0; col< it->columnCount(); ++col)
  9.         {
  10.             qDebug() << col << it->text(col);
  11.  
  12.     QSqlQuery qry;
  13.     qry.prepare("select * from document where Folno=:Folno");
  14.     qry.bindValue(":Folno", it->text(col));
  15.     qry.exec();
  16.  
  17.     query->setQuery(qry);
  18.  
  19.         tableview->setModel(query);
  20.     tableview->setEditTriggers(QAbstractItemView::NoEditTriggers);
  21.     tableview->show();
  22.  
  23.     Docwidget= new QDockWidget(this);
  24.     Docwidget->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
  25.  
  26.     Docwidget->setWidget(tableview);
  27.     addDockWidget(Qt::RightDockWidgetArea,Docwidget);
  28.     Docwidget->show();
  29.  
  30.  
  31.     if(!query->submit())
  32.       {
  33.          qDebug() << "Error " << query->lastError().text();
  34.       }
  35.  
  36.      db.close();
  37.  
  38.     }
  39.     }
  40.        }
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any ideas ??