public MainWindow()
{
InitializeComponent();
this.WindowStartupLocation = WindowStartupLocation.CenterScreen;
Fish_inventory fishy_inv = new Fish_inventory();
//CollectionViewSource fishy_CollectionViewSource;
//fishy_CollectionViewSource = (CollectionViewSource)(FindResource("Fish_CollectionViewSource"));
//fishy_CollectionViewSource.Source = Fish_inventory.inventory;
}