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EF Core Select Columns without projection to anonymous object

Conditional select with EF CoreEF CORE Optimistic concurrency without timestampin ef core combine nullable columnsEF core 2.1 using take in projectionFiltering with EF Core 2.1 inheritanceError when inserting record to SQL Server database from ASP .Net Core 2.1 Web API using EF Core 2.1(In EFCore) How can I configure the underlying database column types, based on a general Type ruleEF core Join two table without primary key columnWhy is a GroupBy followed by a SelectMany to take the n latest records for that group not working without an extra select anonymous step?

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0

I have a query like the one below where I want to be specific about which columns I want to get without projecting to a new type.

dbcontext.
 SomeEntity
 .Include(_ => _.ChildEntityA)
 .ThenInclude(_ => _.SubChildEntityA)
 .Include(_ => _.ChildEntityB)
 .ThenInclude(_ => _.SubChildEntityB)
 .ThenInclude(_ => _.SubSubChildEntityB)
 .Include(_ => _.ChildEntityC)
 .Include(_ => _.ChildEntityD)
 .FirstOrDefault(_ => _.Id == 123)

I am fine projecting when doing small requests but when it gets complex then it becomes heavy to create whole chain of objects via new when there may be only one or two sub entities that you want to filter out which columns you want.

ef-core-2.1

share|improve this question

asked Mar 9 at 2:10

PascalPascal

112

add a comment | 

0

I have a query like the one below where I want to be specific about which columns I want to get without projecting to a new type.

dbcontext.
 SomeEntity
 .Include(_ => _.ChildEntityA)
 .ThenInclude(_ => _.SubChildEntityA)
 .Include(_ => _.ChildEntityB)
 .ThenInclude(_ => _.SubChildEntityB)
 .ThenInclude(_ => _.SubSubChildEntityB)
 .Include(_ => _.ChildEntityC)
 .Include(_ => _.ChildEntityD)
 .FirstOrDefault(_ => _.Id == 123)

I am fine projecting when doing small requests but when it gets complex then it becomes heavy to create whole chain of objects via new when there may be only one or two sub entities that you want to filter out which columns you want.

ef-core-2.1

share|improve this question

asked Mar 9 at 2:10

PascalPascal

112

add a comment | 

I have a query like the one below where I want to be specific about which columns I want to get without projecting to a new type.

dbcontext.
 SomeEntity
 .Include(_ => _.ChildEntityA)
 .ThenInclude(_ => _.SubChildEntityA)
 .Include(_ => _.ChildEntityB)
 .ThenInclude(_ => _.SubChildEntityB)
 .ThenInclude(_ => _.SubSubChildEntityB)
 .Include(_ => _.ChildEntityC)
 .Include(_ => _.ChildEntityD)
 .FirstOrDefault(_ => _.Id == 123)

I am fine projecting when doing small requests but when it gets complex then it becomes heavy to create whole chain of objects via new when there may be only one or two sub entities that you want to filter out which columns you want.

ef-core-2.1

share|improve this question

asked Mar 9 at 2:10

PascalPascal

112

dbcontext.
 SomeEntity
 .Include(_ => _.ChildEntityA)
 .ThenInclude(_ => _.SubChildEntityA)
 .Include(_ => _.ChildEntityB)
 .ThenInclude(_ => _.SubChildEntityB)
 .ThenInclude(_ => _.SubSubChildEntityB)
 .Include(_ => _.ChildEntityC)
 .Include(_ => _.ChildEntityD)
 .FirstOrDefault(_ => _.Id == 123)

share|improve this question

asked Mar 9 at 2:10

PascalPascal

112

share|improve this question

asked Mar 9 at 2:10

PascalPascal

112

asked Mar 9 at 2:10

PascalPascal

112

asked Mar 9 at 2:10

PascalPascal

112