IListing Interface

The IListing Interface is the base interface for all listing types. It handles the creation and update of listing types. In general, it expects UserInput as input from the web page. Since we would consider *any* logic in the MVC layer misplaced (because MVC is supposed to be presentation, and BLL is supposed to be logic) UserInput is just basic data a user could send, mostly consisting of key/value pairs from a webform. Listing Types are generally a set of fields common to all (or most) listings, and a "property bag" of custom fields for additional logic. This property bag should contain information required for internal logic for the listing type, but generally should not contain queryable data. An example would be for Dutch Auctions where "quantity" is part of the internal logic of a Dutch Auction, but most likely users wouldn't be querying listings based on "quantity"... "Show me all listings where quantity is 5..."

public interface IListing