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- var northwindTopSellersLambda =
- db.Order_Details.GroupBy(orderDetails => new
- {
- orderDetails.Order.Employee.FirstName,
- orderDetails.Order.Employee.LastName
- }, orderDetails => new { orderDetails.Order, OrderDetails = orderDetails }).Select(g => new
- {
- g.Key.FirstName,
- g.Key.LastName,
- TotalSale = (decimal?)g.Sum(p => p.OrderDetails.Quantity * p.OrderDetails.UnitPrice)
- });
- myDataGrid.DataSource = await northwindTopSellersLambda.OrderByDescending(c => c.TotalSale).ToListAsync();
- //Use async/await to increase the responsiveness of the application
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