public void UncheckOnly(params string[] values)
 {
     DoVIAction("UnheckOnly: " + values.Print(),
                () =>
     {
         Clear();
         CheckGroup(ListOfValues.Except(values).ToArray());
     });
 }
 public List <string> GetListOfNotChecked()
 {
     return(DoVIActionResult("GetListOfChecked elements",
                             () => ListOfValues.Except(SelectedItems).ToList(), result => "Checkboxes list. GetListOfNotChecked elements: " + result.Print()));
 }