Hi,

I am trying to swap the content of a QListWidget. Perhaps I am not using the right methods ... or maybe I need to use the listview + model instead ?

The context here is that I have a plotter and I am loading multple files. Each files has its own tab with the plotted data. Each tab contains an object with the filename, channelList, etc ..

The "Channel list" is in a general QListWidget and I would like to switch the content of that widget when I switch tab.

Each dataLog object contains the list of channels with a QList that contains items property:
Qt Code: 
  1. QList<QListWidgetItem*> itemList;
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And here's the handler when I change tabs :

Qt Code: 
  1. void MainWindow::on_tabWidget_logs_currentChanged(int index)
  2. {
  3.     foreach(logData* l, this->openedLogs)
  4.     {
  5.         if(l->parentWidget == ui->tabWidget_logs->widget(index))
  6.         {
  7.  
  8.             int count = ui->listWidget_channels->count();
  9.  
  10.             //currentLog->itemList.clear();  // This actually deletes the items in the dataLog object so it's not good
  11.  
  12.             // This doesnt seem to be working since all the items are still in the QListWidget
  13.             for ( int i=0; i<count; i++)
  14.             {
  15.                 ui->listWidget_channels->takeItem(i);
  16.             }
  17.  
  18.             currentLog = l;
  19.             // Take the items from the log object and populate the QListWidget with them
  20.             foreach(QListWidgetItem *i, currentLog->itemList)
  21.             {
  22.                 ui->listWidget_channels->addItem(i);
  23.             }
  24.             ui->listWidget_channels->sortItems();
  25.             break;
  26.         }
  27.     }
  28. }
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