Adds product (and its product options) to the specified shopping cart object. 
            If such product configuration already exists in the shopping cart, only  its quantity is updated.
            Added/updated shopping cart item is returned.
            
Namespace: CMS.EcommerceAssembly: CMS.Ecommerce (in CMS.Ecommerce.dll) Version: 8.0.0.0 (8.0.5239.26125)
Parameters
- cart
 - Type: CMS.Ecommerce ShoppingCartInfo
Shopping cart 
- itemParams
 - Type: CMS.Ecommerce ShoppingCartItemParameters
Parameters of the shopping cart item which should be used to perform the adding or updating. 
Return Value
Type: ShoppingCartItemInfoSee Also