private void Refresh(object sender, RoutedEventArgs e)
{
lsCustomer = new ObservableCollection <CustomCustomer>(rp.getAll());
lvCustomer.ItemsSource = lsCustomer;
lvCustomer.SelectedItem = null;
cbCustomReport.SelectedIndex = 0;
}
public CustomerReportPage()
{
this.InitializeComponent();
rp = new ReportBS();
lsCustomer = new ObservableCollection <CustomCustomer>(rp.getAll());
lvCustomer.ItemsSource = lsCustomer;
}