How to return same object with linq as with lambda











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I'm trying to use object with Entity Framework Core when I use linq query. But object is always anonymous, which I don't want. I have this code:



                var query = (from c in context.UserTest
join k in context.OneToTest on c.FkOneToTestId equals k.Id
select new { c, k }).ToList();


which is anonymous object. But with this code:



 var test = context.UserTest
.Include(one => one.OneToTest)
.ToList();


I want to have same object in query and test.Now in test is List<UserTest> and in query List<'a>. Is there any easy way how to do it with linq?










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  • 1




    It's unclear what are you asking. What you call test is the EF Core recommended (intended) way to do what you call query. In LINQ to Entities we don't use manual joins as in the regular LINQ, because we don't need them - navigation properties do that for us.
    – Ivan Stoev
    Nov 10 at 17:49












  • Does my answer help you?
    – Ruard van Elburg
    yesterday















up vote
1
down vote

favorite
1












I'm trying to use object with Entity Framework Core when I use linq query. But object is always anonymous, which I don't want. I have this code:



                var query = (from c in context.UserTest
join k in context.OneToTest on c.FkOneToTestId equals k.Id
select new { c, k }).ToList();


which is anonymous object. But with this code:



 var test = context.UserTest
.Include(one => one.OneToTest)
.ToList();


I want to have same object in query and test.Now in test is List<UserTest> and in query List<'a>. Is there any easy way how to do it with linq?










share|improve this question


















  • 1




    It's unclear what are you asking. What you call test is the EF Core recommended (intended) way to do what you call query. In LINQ to Entities we don't use manual joins as in the regular LINQ, because we don't need them - navigation properties do that for us.
    – Ivan Stoev
    Nov 10 at 17:49












  • Does my answer help you?
    – Ruard van Elburg
    yesterday













up vote
1
down vote

favorite
1









up vote
1
down vote

favorite
1






1





I'm trying to use object with Entity Framework Core when I use linq query. But object is always anonymous, which I don't want. I have this code:



                var query = (from c in context.UserTest
join k in context.OneToTest on c.FkOneToTestId equals k.Id
select new { c, k }).ToList();


which is anonymous object. But with this code:



 var test = context.UserTest
.Include(one => one.OneToTest)
.ToList();


I want to have same object in query and test.Now in test is List<UserTest> and in query List<'a>. Is there any easy way how to do it with linq?










share|improve this question













I'm trying to use object with Entity Framework Core when I use linq query. But object is always anonymous, which I don't want. I have this code:



                var query = (from c in context.UserTest
join k in context.OneToTest on c.FkOneToTestId equals k.Id
select new { c, k }).ToList();


which is anonymous object. But with this code:



 var test = context.UserTest
.Include(one => one.OneToTest)
.ToList();


I want to have same object in query and test.Now in test is List<UserTest> and in query List<'a>. Is there any easy way how to do it with linq?







c# entity-framework linq entity-framework-core






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asked Nov 10 at 17:42









marcel novák

134




134








  • 1




    It's unclear what are you asking. What you call test is the EF Core recommended (intended) way to do what you call query. In LINQ to Entities we don't use manual joins as in the regular LINQ, because we don't need them - navigation properties do that for us.
    – Ivan Stoev
    Nov 10 at 17:49












  • Does my answer help you?
    – Ruard van Elburg
    yesterday














  • 1




    It's unclear what are you asking. What you call test is the EF Core recommended (intended) way to do what you call query. In LINQ to Entities we don't use manual joins as in the regular LINQ, because we don't need them - navigation properties do that for us.
    – Ivan Stoev
    Nov 10 at 17:49












  • Does my answer help you?
    – Ruard van Elburg
    yesterday








1




1




It's unclear what are you asking. What you call test is the EF Core recommended (intended) way to do what you call query. In LINQ to Entities we don't use manual joins as in the regular LINQ, because we don't need them - navigation properties do that for us.
– Ivan Stoev
Nov 10 at 17:49






It's unclear what are you asking. What you call test is the EF Core recommended (intended) way to do what you call query. In LINQ to Entities we don't use manual joins as in the regular LINQ, because we don't need them - navigation properties do that for us.
– Ivan Stoev
Nov 10 at 17:49














Does my answer help you?
– Ruard van Elburg
yesterday




Does my answer help you?
– Ruard van Elburg
yesterday












1 Answer
1






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up vote
0
down vote



accepted










The equivalent of



var test = context.UserTest.Include(one => one.OneToTest).ToList();


is:



var test = (from c in context.UserTest.Include(one => one.OneToTest)
select c).ToList();


The only way I know to not use Include is to create a new object, where you don't need the join:



var test = (from c in context.UserTest
select new UserTest
{
Id = c.Id,
OneToTest = c.OneToTest,
// ...
}).ToList();





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    up vote
    0
    down vote



    accepted










    The equivalent of



    var test = context.UserTest.Include(one => one.OneToTest).ToList();


    is:



    var test = (from c in context.UserTest.Include(one => one.OneToTest)
    select c).ToList();


    The only way I know to not use Include is to create a new object, where you don't need the join:



    var test = (from c in context.UserTest
    select new UserTest
    {
    Id = c.Id,
    OneToTest = c.OneToTest,
    // ...
    }).ToList();





    share|improve this answer

























      up vote
      0
      down vote



      accepted










      The equivalent of



      var test = context.UserTest.Include(one => one.OneToTest).ToList();


      is:



      var test = (from c in context.UserTest.Include(one => one.OneToTest)
      select c).ToList();


      The only way I know to not use Include is to create a new object, where you don't need the join:



      var test = (from c in context.UserTest
      select new UserTest
      {
      Id = c.Id,
      OneToTest = c.OneToTest,
      // ...
      }).ToList();





      share|improve this answer























        up vote
        0
        down vote



        accepted







        up vote
        0
        down vote



        accepted






        The equivalent of



        var test = context.UserTest.Include(one => one.OneToTest).ToList();


        is:



        var test = (from c in context.UserTest.Include(one => one.OneToTest)
        select c).ToList();


        The only way I know to not use Include is to create a new object, where you don't need the join:



        var test = (from c in context.UserTest
        select new UserTest
        {
        Id = c.Id,
        OneToTest = c.OneToTest,
        // ...
        }).ToList();





        share|improve this answer












        The equivalent of



        var test = context.UserTest.Include(one => one.OneToTest).ToList();


        is:



        var test = (from c in context.UserTest.Include(one => one.OneToTest)
        select c).ToList();


        The only way I know to not use Include is to create a new object, where you don't need the join:



        var test = (from c in context.UserTest
        select new UserTest
        {
        Id = c.Id,
        OneToTest = c.OneToTest,
        // ...
        }).ToList();






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 11 at 0:48









        Ruard van Elburg

        4,77321125




        4,77321125






























             

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