private void reloadData()
        {
            ProductDataGrid.ItemsSource = null;
            ProductSizeQuantityVMs itemsource = new ProductSizeQuantityVMs();

            ProductDataGrid.ItemsSource = itemsource.getProductViewModel();
            SumProductLable.Content     = "Tổng cộng: " + itemsource.sumProduct;
        }
        public WareHouseUserControl()
        {
            InitializeComponent();
            ProductSizeQuantityVMs itemsource = new ProductSizeQuantityVMs();

            ProductDataGrid.ItemsSource = itemsource.getProductViewModel();
            SumProductLable.Content     = "Tổng cộng: " + itemsource.sumProduct;
        }