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Recent questions tagged ef
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ef code first - How I can read EF DbContext metadata programmatically?
I have application which uses EF-CodeFirst 5 (dll ver 4.4.0.0, on .net 4.0). I need to be able to read ... , it seems that I cannot find it)? See Question&Answers more detail:os...
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Oct 17, 2021
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ef fluent api - How to do a join in linq to sql with method syntax?
I have seen lots of examples in LINQ to SQL examples on how to do a join in query syntax but I am ... ? Can anyone illustrate or provide another simple example? Question&Answers:os...
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Oct 17, 2021
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ef code first - Unique Key constraints for multiple columns in Entity Framework
I'm using Entity Framework 5.0 Code First; public class Entity { [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity) ... ERROR Is there anyway to do that? Question&Answers:os...
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Oct 17, 2021
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ef code first - Entity Framework: One Database, Multiple DbContexts. Is this a bad idea?
Closed. This question is opinion-based. It is not currently accepting answers. Question&Answers:os...
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Oct 17, 2021
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ef code first - EF Core Migrations do not take seeding data values
I have a problem with EF Core Migrations in the DataSeeding. I have the following entity configuration: public void ... /65844017/ef-core-migrations-do-not-take-seeding-data-values...
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Oct 7, 2021
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ef core 3.1 - ABP Framework (ABP.IO) - How to call dbContext in Domain
In .EntityFrameworkCore Project : public class EfCoreCountryRepository : EfCoreRepository<myDbContext, Country, Guid>, ICountryRepository ... abp-io-how-to-call-dbcontext-in-domain...
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Oct 7, 2021
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ef code first - Entity Framework Core - get rid of duplicate id of inherited object
I'm using PostgreSQL database with the EF Core (with the Table-Per-Type inheritance). I have questions and ... entity-framework-core-get-rid-of-duplicate-id-of-inherited-object...
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Oct 7, 2021
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ef code first - Entity Framework: I set the foreign key, SaveChanges then access the navigation property, but it doesn't load the related entity. Why not?
I am using this Entity class with Entity Framework 5 Code First: public class Survey { [DatabaseGenerated( ... -set-the-foreign-key-savechanges-then-access-the-navigation...
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Oct 6, 2021
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ef core 3.1 - Helper methods like Any() , Contains() when used inside FUNC predicate in where clause are not getting translated to Sql Server and hence erred out
I am using .net core 3 with ef. When I use the below code, result is loaded DbSet<User>().Where(User ... can progress with predicate without running into any problem. Any insights?...
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Jan 29, 2021
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