Linq con el grupo teniendo cuenta

Question

Linq con el grupo teniendo cuenta

¿Cómo escribo esta consulta en linq (vb.net)?

 select B.Name
 from Company B
 group by B.Name
 having COUNT(1) > 1

108

linq count group-by having

Author: Fernando, 2010-01-16

Source

2 answers

Para cualquiera que busque hacer esto en vb (como yo estaba y no pude encontrar nada)

From c In db.Company 
Select c.Name Group By Name Into Group 
Where Group.Count > 1

5

Author: Michael Andrews,
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2015-07-21 22:28:12

score 229 · Accepted Answer

Así:

from c in db.Company
group c by c.Name into grp
where grp.Count() > 1
select grp.Key

O, usando la sintaxis del método:

Company
    .GroupBy(c => c.Name)
    .Where(grp => grp.Count() > 1)
    .Select(grp => grp.Key);

229

Author: Thomas Levesque,
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2014-08-21 21:49:03