private void TabItem_Selected(object sender, RoutedEventArgs e)
{
PLayer newLayer = new PLayer();
List <Item> ls = newLayer.fetchAllItems();
this.myls.ItemsSource = ls;
}
private void StockReport_Click(object sender, RoutedEventArgs e)
{
DateTime lowerDate = this.Pick1.SelectedDate.Value.Date;
DateTime upperDate = this.Pick2.SelectedDate.Value.Date;
PLayer newLayer = new PLayer();
List <Item> ls = newLayer.fetchAllItems(lowerDate, upperDate);
this.myls.ItemsSource = ls;
}