private void Button_Click(object sender, RoutedEventArgs e) { if (ProductID.Text == "" || ProductName.Text == "" || QuantityPerUnit.Text == "" || CategoryID.Text == "" || UnitPrice.Text == "" || UnitInStock.Text == "" || ReorderLevel.Text == "" || SupplierID.Text == "" || Discontinued.Text == "") { MessageBox.Show("All Fields are required to be filled"); } else { dataAccess data = new dataAccess(); products prod = new products(); prod.BarCode = long.Parse(ProductID.Text); prod.ProductName = ProductName.Text; prod.QuantityPerUnit = int.Parse(QuantityPerUnit.Text); prod.ReorderLevel = int.Parse(ReorderLevel.Text); prod.UnitInStock = int.Parse(UnitInStock.Text); prod.UnitPrice = double.Parse(UnitPrice.Text); prod.Discontinued = Discontinued.Text; data.editProducts(prod); MessageBox.Show("Product " + prod.ProductName + " Modified Successfully"); } }