entity-framework-6

As of EF6 it is possible to do something like this when configuring Entity mappings using Table Per Hierarchy inheritance: public class MyContext : DbContext { public DbSet<Device> Devices { get; set; } protected override void OnModelCreating(DbModelBuilder modelBuilder) { modelBuilder.Entity<ABatteryPoweredDevice>().Property(c => c.BatteryLevel).HasColumnName("BatteryLevel"); modelBuilder.Entity<ADifferentBatteryPoweredDevice>().Property(c => c.BatteryLevel).HasColumnName("BatteryLevel"); } } BatteryLevel is not part of the Device base class- it is a property of the derived classes

I know there is a problem with EF6 EntityFramework.SqlServer and included var type = typeof(System.Data.Entity.SqlServer.SqlProviderServices); in context constructor. It works fine when i do publish in DEBUG mode. Getting the below error only when I publish in RELEASE mode. The reason is EntityFramework.SqlServer.dll missing in the published folder. But, bin folder has EntityFramework.SqlServer.dll for both debug and release mode. Error: The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for

How do I create connection string programmatically to MS SQL in Entity Framework 6? I'm using c# and WPF and I was wondering if someone could show me how or link me to a resource that shows how to set up connection strings programmatically in EF 6. The MSDN article explains that you can http://msdn.microsoft.com/en-us/data/jj680699#moving but it doesn't go into creating actual connection strings. So here is an EF6 example that works App.Config entityFramework codeConfigurationType="WPFwithEF.SqlConfiguration, WPFwithEF"> /entityFramework context public class ProductContext : DbContext { public

FACTS: net core 2.0 project entity framework (code first) different appsettings.json file for different environments I utilize Package Manager Console to generate my DB scripts (Add-Migration, Update-Database) If I run PM>"Get-DbContext" it brings back info pulled from my appsettings.Development.json file GREAT, that's what I want most of the time! But how do I tell it to pull db variables from appsettings.Staging.json instead of development for PM commands? I tried creating new launchSettings.json profiles and setting "ASPNETCORE_ENVIRONMENT": "Staging" but everything seems to respect that

I know that the EF6 VS Tools for Visual Studio 2012 come with a T4 template to generate DbContext classes which work with EF6. But I want to have a generator which uses fluent API. The older version I used with EF4 and EF5 don't work with EF6 and the author no longer works on them to make them EF6 compatible. Is anyone else working on a generator which uses Fluent API which works with EF6? http://visualstudiogallery.msdn.microsoft.com/72a60b14-1581-4b9b-89f2-846072eff19d If you have a database you can use reverse code first it will generate all your fluent api mapping. 来源： https:/

I need to use Entity Framework, LINQ to query the XML data from the SQL in my asp.net mvc(C#) application. I have a column XMLValue with data <MetaData> <Reviews>1</Reviews> <Rating>1</Rating> </MetaData> I need to get all the Customers who have a Rating of 1 from the xml. I have referred to this stackoverflow post and I am not able to achieve it. I have added the SQL function and added it to my edmx: CREATE FUNCTION [dbo].[FilterCustomersByRating] (@Rating int) RETURNS TABLE AS RETURN SELECT XMLTest.* FROM XMLTest CROSS APPLY XMLValue.nodes('//MetaData') N(C) where N.C.value('Rating[1]', 'int