Selecting multiple list items from one List Widget and displaying them in another

In the preceding application, you were selecting only a single diagnosis test from the List Widget item. What if I want to do multiple selections from the List Widget item? In the case of multiple selections, instead of a Line Edit widget, you need another List Widget to store the selected diagnosis test.

How to do it...

Let's create an application that displays certain diagnosis tests through List Widget and when user selects any test from List Widget, the selected test will be displayed in another List Widget:

1. So, create a new application of the Dialog without Buttons template and drag and drop two Label widgets and two List Widget onto the form.
2. Set the text property of the first Label widget as Diagnosis Tests and that of the other to Selected tests are.
3. Set the objectName property of the first List Widget to listWidgetDiagnosis and of the second List Widget to listWidgetSelectedTests.
4. To display diagnosis tests...