Entity Framework 6 - Knowledge Base (KB)

Entity Framework - Linq To Entities - Many-To-Many Query Problems

I am having problems querying many-to-many relationships in Linq To Entities. I am basically trying to replicate this query using Linq:...Select * FROM Customer LEFT JOIN CustomerInterest ON Customer.CustomerID = CustomerInterest.CustomerID LEFT JOIN In...

Is an outer join possible with Linq to Entity Framework

There are many examples of outer join using Linq to Sql, all of them hinging on ...DefaultIfEmpty()... which is not supported with Linq to Entity Framework....Does this mean that outer join is not possible with Linq to Entity using .NET 3.5 (I understand ...

Entity Framework include with left join is this possible?

I have the following tables...ClassRoom (ClassID,ClassName)...StudentClass (StudentID,ClassID)...Student (StudentID,StudentName,Etc..)...StudentDescription. (StudentDescriptionID,StudentID,StudentDescription)...I want to retrieve all the inform...

Left Outer Join via Linq To Entities via Entity Framework with Where clause

I have read all the posts related to implementing the equivalent of a LEFT OUTER JOIN in Linq to Entities (.NET 3.5) when using the Entity Framework, but have yet to find a solution to the following problem....Given two tables, represented by the objects ...

Entity framework left join

How do I change this query so it returns all u.usergroups?...from u in usergroups from p in u.UsergroupPrices select new UsergroupPricesList { UsergroupID = u.UsergroupID, UsergroupName = u.UsergroupName, Price = p.Price };

Entity Framework left join multiple tables failure

I'm using Entity Framework 6 and I have few entities and a query like the following:...var results = (from e1 in dataContext.Entity1 .Where(x => x.Key1 == 1) from e2 in dataContext.Entity2 .Where(x => x...

Include() is not working as LEFT JOIN (Entity Framework 6)

Thank you in advance for your help. I'm a little confused about a situation that occurred to me when using the ...include()... method ...Entity Framework 6.... As I understand it, the include method works as ...LEFT JOIN... when the enclosed object is ...