TORONTO — Walmart Canada and 7-Eleven Canada are joining forces to do an e-commerce pilot project in the Toronto area. Online shoppers at Walmart.ca will be able to have their orders delivered for pickup at one of six convenience stores operated around the clock by 7-Eleven. It's an extension of a Walmart locker service, currently available at the retailer's Canadian head office, some of its stores in the Greater Toronto Area and in Kapuskasing, Ont. With the lockers, Walmart customers are sent an email with a six-digit code that remains valid for seven days. It's one of several attempts by Canadian retailers to use established store fronts as pickup points for goods bought online. The companies say their pilot project will run six months at certain 7-Eleven stores in Brampton, Burlington, Toronto, Mississauga and Vaughan.