Entity Framework - select group by, select max date

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走了就别回头了
走了就别回头了 2021-01-06 14:57

I have a NoteBrief

public int Id { get; set; } 
public string Title { get; set; } 
public DateTime Created { get; set; }
public int ParentNoteId { get; s         


        
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  •  花落未央
    2021-01-06 15:48

    Entity Framework creating IQuerable of the most recent

    This is what finally worked for me:

            return from e in _ctx.Notes
                   group e by e.ParentNoteId into g
                   select g.OrderByDescending(e => e.Created).FirstOrDefault() into r
                   select new NoteBrief
                   {
                       Id = r.Id,
                       Title = r.Title,
                       Created = r.Created,
                       ParentNoteId = r.ParentNoteId,
                   };
    

    Also edited my original post with correct query i was going for.

    Thanks.

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