public SelectCostObjective(MainWindow mainWindow, Items itemWindow)
     : this()
 {
     this.selectItemWindow = itemWindow;
     this.mainWindow = mainWindow;
     Scenario = CostObjectiveScenarios.SelectItem;
     async = new AsyncWork(mainWindow); async2 = new AsyncWork(mainWindow); async3 = new AsyncWork(mainWindow);
 }
 private void btnShowSelect_Click(object sender, RoutedEventArgs e)
 {
     Items itemDialog = new Items(mainWindow, this);
     itemDialog.ShowDialog();
 }