SQL - 将2列显示为1，但仍使用ID_Column作为主键

I have a table with 2 columns, Product ID and Product Description. In asp.NET I am populating a dropdown list with a datatable, and the user selects a product. Therefore I still need to use the ID as the identifier, but having a product description would help so the user would know what the product is.I have a table with 2 columns, Product ID and P