Linq to SQL by group by

Question

如何在linq VB.NET中編寫此查詢？

select top 15 count(1), A.Latitude, A.Longitude 
from Bairro A 
inner join Empresa B on B.BairroID = A.BairroID 
where A.CidadeID = 4810 
group by A.Latitude, A.Longitude 
order by COUNT(1) desc 

我達到了這個代碼：

Dim TopBairros = (From A In Bairros _ 
        Join B In New BO.Empresa().Select On B.BairroID Equals A.BairroID Group A By A.Latitude, A.Longitude Into g = Group _ 
        Select g Distinct _ 
        Order By g.Count Descending).Take(15) 

每行具有含有屢與計數數的同一對象陣列集合。例如：

行0：874個相同的對象 第1排陣：710個相同的對象

等的陣列......我該怎麼辦每行返回只有一個對象？

Answer 1

試試這個：

var query = from a in context.Bairro 
      where a.CidadeID == 4810 
      join b in context.Empresa on a.BairroID equals b.BairroID 
      group a by new { a.Latitude, a.Longitude } into grouped 
      orderby grouped.Count() descending 
      select new { grouped.Key.Latitude, 
         grouped.Key.Longitude, 
         Count = grouped.Count() }; 
var top15 = query.Take(15);