So I have a model
public class Player
{
public int PlayerId { get; set; }
[Required]
public string Name2 { get; set; }
public string Cv { get; set; }
public int TeamId { get; set; }
public virtual Team Team { get; set; }
}
public class Team
{
public int TeamId { get; set; }
[Required]
public string Name { get; set; }
public string City { get; set; }
public DateTime Founded { get; set; }
public virtual IList<Player> Players { get; set; }
}
The table of my teams in the database contains entries, the table of my players in the database does not contain (empty).
When I run this query:
IQueryable<Player> query = playerRepository.All.Include(p => p.Team);
return View((query);
I get this request in the database (via profiler):
SELECT
[Project1].[TeamId] AS [TeamId],
[Project1].[Name] AS [Name],
[Project1].[City] AS [City],
[Project1].[Founded] AS [Founded],
[Project1].[C1] AS [C1],
[Project1].[PlayerId] AS [PlayerId],
[Project1].[Name2] AS [Name2],
[Project1].[Cv] AS [Cv],
[Project1].[TeamId1] AS [TeamId1]
FROM ( SELECT
[Limit1].[TeamId] AS [TeamId],
[Limit1].[Name] AS [Name],
[Limit1].[City] AS [City],
[Limit1].[Founded] AS [Founded],
[Extent2].[PlayerId] AS [PlayerId],
[Extent2].[Name2] AS [Name2],
[Extent2].[Cv] AS [Cv],
[Extent2].[TeamId] AS [TeamId1],
CASE WHEN ([Extent2].[PlayerId] IS NULL) THEN CAST(NULL AS int)
ELSE 1
END AS [C1]
FROM ( SELECT TOP (10) [c].[TeamId] AS [TeamId],
[c].[Name] AS [Name],
[c].[City] AS [City],
[c].[Founded] AS [Founded]
FROM [dbo].[Teams] AS [c]
) AS [Limit1]
LEFT OUTER JOIN [dbo].[Players] AS [Extent2]
ON [Limit1].[TeamId] = [Extent2].[TeamId]
) AS [Project1]
ORDER BY [Project1].[TeamId] ASC, [Project1].[C1] ASC
As a result, I get one blank line shown on the screen. This is due to the fact that this association is performed in the wrong order ... instead of joining Team on Players, I get "Players in teams" ... which, in turn, means that although I do not have players in the DB, I get an empty row in the grid.
Does anyone have any idea why ???
Vladan