Hello.
We did solve it in support ticket. Let me post here code you use for this task. Maybe some other customer may use it as well.
The code is placed in ShoppingCartContent.ascx.cs, ReloadData() method:
protected void ReloadData()
{
foreach (DataRow row in ShoppingCartInfoObj.ShoppingCartContentTable.Rows)
{
row["Tax"] = Convert.ToDouble(row["SKUPrice"]) * 0.20;
}
CMS.Ecommerce.ShoppingCartInfoProvider.SetShoppingCartInfo(ShoppingCartInfoObj);
// (...)
}
Best Regards,
Radek Macalik