converti SQL groupe LINQ par min, compter

Question

Comment convertir SQL LINQ

SELECT 
      [good_id] 
      ,MIN([good_price]) as minPrice 
      ,Count([distributor_id]) as distrCount 
     FROM [Provizor].[dbo].[PRICES] where region_id=22 
     GROUP BY [good_id] 
     ORDER BY distrCount desc 

Comment faire dans LINQ groupant

Answer 1

Quelque chose comme ceci:

var query = dbo.Prices 
       .Where(x => x.region_id == 22) 
       .GroupBy(x => x.good_id) 
       .Select(g => new 
       { 
        minPrice = g.Min(x => x.good_price), 
        distrCount = g.Count(x=> x.distributor_id!=null) 
       } 
       .OrderByDescending(x => x.distrCount);