convertir sql à LINQ

Question

select m.messageID,m.[addeddate],m.message,count(*) as Comments 
from intranet.dbo.Blog_Messages AS m inner join 
intranet.dbo.Blog_Comments AS c on c.messageid = m.messageid 
group by m.messageID,m.[addeddate],m.message 

ont besoin d'aide à la conversion de ce LINQ to SQL

Answer 1

from m in context.Blog_Messages 
select new 
{ 
    MessageId = m.MessageID, 
    AddedDate = m.AddedDate, 
    Message = m.Message, 
    Comments = m.Blog_Comments.Count() 
} 

Il n'est pas une conversion directe, mais je pense que c'est ce que vous recherchez.

Answer 2

Dim Msg = From m In db2.Blog_Messages _ 
     Group Join c In db2.Blog_Comments On m.MessageID Equals c.MessageID Into Comments = Group _ 
     Join u In db2.users On m.userID Equals u.userid _ 
     Select New With { 
      m.Title, m.Message, m.MessageID, 
      .CommentCount = Comments.Count(), 
      .date1 = m.AddedDate.ToShortDateString, 
      .Time = m.AddedDate.ToShortTimeString(), 
      .fullName = u.fname & " " & u.lname 
     } 

ce que je suis venu avec ..

merci, Chris

Answer 3

 
from m in db.Blog_Messages 
join c in db.Blog_Comments on m.MessageID equals c.MessageID 
group m by new { 
    m.MessageID, 
    m.AddedDate, 
    m.Message 
} into g 
select new { 
    MessageID = g.Key.MessageID, 
    AddedDate = g.Key.AddedDate, 
    g.Key.Message, 
    Comments = g.Count() 
}