c# lambda reading each row with GROUP BY and SUM -


this working query using in management studio.

select top 5 productcode, sum(productsales) sales     sellinglog  (salesyear = '2014') group productcode order sales desc

i want convert query above lambda, can't seems make works. lambda still lacks of order , select productcode

var topproducts = sellinglog        .where(s => s.salesyear == 2014)        .groupby(u => u.productcode)        .select(b => b.sum(u => u.productsales)).take(5)        .tolist();  foreach(var v in topproduct) {    //reading 'productcode' , 'sales' each row } 

var topproducts = sellinglog        .where(s => s.salesyear == 2014)        .groupby(u => u.productcode)        .select(g => new { productcode = g.key, sales = g.sum(u => u.productsales) })        .orderbydescending(x => x.productcode)        .take(5)        .tolist();

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