Entity Framework Core - Knowledge Base (KB)
6642 results
Does Entity Framework 6 precompile queries with .Net Framework 4.0
Question title really says it all, but I can't seem to find this tidbit of information anywhere. A comment here ( ...https://stackoverflow.com/a/13224381/215068...) is the best I've found....Will EF 6 (6.0.1) precompile views when using the .NET Framewor...
asked by EBarr
Thread safe Entity Framework 6
Just starting testing EF6 and its Async functions. Boy was I surprised when I realized that they are not thread safe. I kinda assumed that that was the point....I had my own ...Task... based extension methods for years already, but what I was waiting for ...
asked by Rabbi
Use method in entity framework query
Is there anyway around this error? I'd like to reuse the same lamba expression in other queries instead of having duplication. Can LinqKit or other linq expression do this?...Error...LINQ to Entities does not recognize the method 'Boolean GetEvent(Tournam...
asked by Mike Flynn
EF 6 Multiple Contexts in Same Assembly
I'm using EF6. I've created two namespaces for two different databases each with its own Entity Data model. In EF 3.5 when I created a model from a database the generated classes were all kept in a single file built from the context. I see in EF 6 templat...
asked by Mike G
Entity DataSource not working with Entity Framework 6 Upgrade
I recently upgraded our Webforms application from EF 4.4 to EF6 and I got so many compile time build errors with the Entity Datasource controls. Generally I am getting these error in all occurrences when trying to access the context object :...e.Context ....
asked by Maninder
Mapping composite keys using EF code first
Sql server table:...SomeId PK varchar(50) not null OtherId PK int not null ...How should I map this in EF 6 code first?...public class MyTable { [Key] public string SomeId { get; set; } [Key] public int OtherId { get; set; } } ...I've se...
asked by loyalflow
How to get id from entity for Auditlog in Entity Framework 6
I know it's several similar posts out there, but I cannot find any with a solution to this issue....I want to add a (sort of) AudioLog when adding, changing or deleting entities (soft-delete) in Entity Framework 6. I've overridden the SaveChanges and beca...
asked by baddaydaddy
The type initializer for 'System.Data.Entity.Internal.AppConfig' threw an exception on a Sub Website
I have 2 websites, one is a sub directory of another but is an Application ex: /root & /root/Services...They both use Entity Framework 6.x but the child website is throwing ...The type initializer for System.Data.Entity.Internal.AppConfig' threw an except...
asked by Brian
HotTowel EF6 MVC5 Angular Breeze version challenge
Is it Possible to Get HotTowel and EntityFramework 6 working together?...Our DataAccess Layer was upgraded to EF6. The only reference we have to EntityFramework in the Web layer is the Web.Config... <section name="entityFramework" type="System.Data.Entit...
asked by phil soady
EF6, Code-First, enable-migrations, "Unable to load the specified metadata resource"
I have created a C# class library with 3 entity classes and a DbContext for code-first generation of database. All has gone well with version 1. I have created a separate test library and the class library with the DbContext class has been behaving as e...
asked by Neil W
EntityFramework 6 Migrations for both existing and new databases?
In our software, we have a customer base with existing databases. The databases are currently accessed via EntitySpaces, but we'd like to switch to EntityFramework (v6), as EntitySpaces is no longer supported. We'd also like to make use of the migrations ...
asked by hoekki
EF6 - UTC DateTime
Is there any way to specify Entity Framework to convert all DateTime in UTC (for azure database storage) ? ...I would like that my model stay in local date time. I don't want to duplicate model datetime properties to have one in UTC (for EF) and another o...
asked by ZeBobo5
Duplicate navigation properties when using Entity Framework 6 and fluent api
I got two models with a relations....public class Customer { public Customer() { CustomerSites = new List<CustomerSite>(); } public IList<CustomerSite> CustomerSites { get; set; } } public class CustomerSite { public Gui...
asked by ainteger
Is transaction scope available in Entity framework 6.0
Entity framework 6.0 articles shows only "UseTransaction" and "BeginTransaction". Is transaction scope still available in Entity framework 6.0. If yes, how to use it and which dll to include?
asked by Sumesh Kuttan
Spatial DataReader and Wrapping Providers in EF6
To get my head around the new style of wrapping providers in EF6 I have put a quick sample together but I am struggling when it comes to the spatial data reader....The exception I get is...Specified type is not registered on the target server.System.Data....
asked by Matt Demler
EF code first Invalid column name
I'm currently working on my own simple CMS using MVC to familiarize myself with MVC and EF. ...At this time I've only got pages which can contain multiple paragraphs. In the database I've got 1 page (Home) and 1 paragraph. ...On the index view of home I'm...
asked by Jop
Best practices for integrating ASP.NET Identity - do they exist?
I'm using ASP.NET Identity with a new website and there don't seem to be many (any?) examples of how to do this in a decoupled manner. I do not want my domain model's ...DomainUser... class to have to inherit from ...Microsoft.AspNet.Identity.EntityFramew...
asked by joelmdev
Entity Framework 6 with Sql Server Compact 3.5 SP2?
I have found lots of information about using Entity Framework 6 with Sql CE 4 and on using Entity Framework 4 with both Sql CE 4 and 3.5, but using Entity Framework 6 with Sql CE 3.5 is a different matter. As far as I can tell, CE 3.5 ships with a provid...
asked by Dave Rael
How can I parse a string into a UNIQUEIDENTIFIER?
I'm writing an Entity Framework LINQ query in which I want to parse a string into a UNIQUEIDENTIFIER (aka GUID) as part of the ...WHERE... clause:...public IEnumerable<User> Find(Guid guid) { return dbContext .Users .Where(user => Guid...
asked by Sam
Save detached object graph using Entity Framework code first causes Primary Key violation
I'm trying to save an object graph of POCOs I have mapped to EF6 using Code First fluent notations....Upon saving the object graph however, I stumble upon primary key violation exceptions....The object graph is quite simple:...One ...Issue... can contain ...
asked by Robert Sirre
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