Validates volume discount and calculates shopping cart item unit discount after the volume discount is applied.
            
Namespace: CMS.EcommerceAssembly: CMS.Ecommerce (in CMS.Ecommerce.dll) Version: 8.0.0.0 (8.0.5239.26125)
Parameters
- item
 - Type: CMS.Ecommerce ShoppingCartItemInfo
Shopping cart item to which the volume discount should be applied 
- discount
 - Type: CMS.Ecommerce VolumeDiscountInfo
Volume discount data 
- basePrice (Optional)
 - Type: 
System Double
Price to apply discount to. 
Return Value
Type:See Also