The additional images are in the "_Product.Images" ProductImageCollection. For each ProductImage in the ProductImageCollection there is another ImageUrl and ImageAltText.
So you could use this to determine if there are any additional images:
Code: Select all
int addImgCount = _Product.Images.Count;
If there are images, you can loop through the ProductImageCollection or just take the first one if you never have more one additional image.
Take a look at the Admin\Products\Assets\AdditionalImages.aspx control for more examples on how to access these images.