Entity Framework Core Tutorial - Knowledge Base (KB)
30 results for: in tag: visual-studio-2015
How to create an index for a string property in Entity Framework 7
I'm trying to create a code first model for Entity Framework 7. I'm using recently released Visual Studio 2015 Beta and the following versions of EntityFramework packages (snippet from my project.json file):..."EntityFramework.SqlServer": "7.0.0-beta1", "...
asked by Alexander Bessonov
Configure more than one dbcontext in EF 7
I created a web starter application with VS 2015 ctp, and I would like to add an in-memory store to do some test, but when I try to read the data, I get this message ...The data stores 'SqlServerDataStore' 'InMemoryDataStore' are available. A context ca...
asked by Luca Morelli
Nuget error "Object reference not set to an instance of an object" while installing Entityframework 7 from Package Manager Console in VS2015
I am trying to build a sample application using EF7 and mvc 6 in visual studio 2015 pre release....While installing both EF7 and MVC6 using package manager console getting this error.... PM> Install-Package EntityFramework.Commands -Version 7.0.0-beta3 -P...
asked by jkyadav
Entity Framework 7 Migration Scaffolding in Class Library with Configuration
Trying to add migrations to an EF7 Model that lives in an ASP.NET 5 class library. When running ...dnx . ef migration add mymigration... fails with different results depending on which project I run it on. ...If I run it in the folder of the main project,...
asked by CuddleBunny
ASP.NET 5, Entity Framework 7 & SQL Server 2014 - multiple dbContexts, SQL views
I have created a solution in Visual Studio 2015 consisting of a Web project (using the ASP.NET 5 Beta 6 Web Application Preview Template), and a Model project (using Entity Framework 7 Beta 6)....I got to the point where I could get data from a SQL Server...
asked by Jerms
NuGet package referencing issues in new Nuget Class Library template in Visual Studio 2015
I've been working with the pre-release version of VS2015 recently which gave the option of a "ASP.NET 5 Class Library" which has since changed in RTM to simply "Class Library (Package)" With the description ...PREVIEW - A project template for creation a c...
asked by BenM
How can I update my project from System.runtime 4.0.10.0 to 4.0.20.0
I get this error when I build my project:...Severity Code Description Project File Line Error CS1705 Assembly 'EntityFramework.Core' with identity 'EntityFramework.Core, Version=7.0.0.0, Culture=neutral, PublicKeyToken=null' uses 'System.Ru...
asked by Elisabeth
The EntityFramework package is not installed on project ASP.NET Beta8
Trying to get Entity Framework 7 to work in my ASP.NET 5 Beta8 project. I have references to EntityFramework.SqlServer 7.0.0-beta8 and EntityFramework.Commands 7.0.0-beta8 packages in my references. ...Yet when I go to the Nuget Package Manager Console...
asked by Ian Forsyth
Entity framework 7, visual studio 2015, console commands don't work
I am using the ASP.NET 5 Web application Template (which is using EF7 and MVC 6), the one with the individual User Accounts, and I have the following problem:...When I add my own DBSet to the ApplicationDbContext class, and then going to a page which is t...
asked by anonymous
Add Migration gives "Unable to resolve project from ..."
Using EF7 on an ASP.NET 5 project I tried to add a migration typing the following on VS Package Manager Console:...dnx ef migrations add InitialDatabaseSetup ...And I got the error:...Unable to resolve project from C:\Projects\ASPNET5DEMO ...The project i...
asked by Miguel Moura
How to access ASP.NET UserManager
I am looking for the correct way to get access to the UserManager<MyUser> object outside of a controller using the most recent incarnation of ASP.NET MVC 5 and Entity Framework 7....I want to seed my database with users in my seed class, but I have been u...
asked by ChiliYago
How to scaffold DbContext with plural DbSet property names in Entity Framework Core?
I use ...Scaffold-DbContext... command in ...Package Manager Console... to create and re-create context and entities for an existed SQL Server database:...Scaffold-DbContext -provider EntityFramework.MicrosoftSqlServer -connection "my connection string" ....
asked by Ilya Chumakov
Error during compilation with .NET 4.6.1 on a Nuget Class Library with EF core
I have a problem during compilation for two .NET class libraries. the problem occur during build targeting .NET4.6.1 (or 4.5.2, 4.6 or other, I've try all).....NET Framework 4.6 error CS0012: The type 'Func<,>' is defined in an assembly that is not refe...
asked by cdie
MissingMetadataException when building UWP app with .Net native
I have this UWP app that uses a project (UWP class library) which itself uses EF7 and SQLite....I tried to build the app in the Release mode using .Net native tool chain, the build completes successfully (after a good long time, and after eating as much m...
asked by AymenDaoudi
UseSqlServer is not defined in DbContextOptionBuilder
I am trying to configure entity framework 7 in my console application....However , I noticed that "UseSqlServer" is not defined in DbContextOptionBuilder...Here is the code...public class LetsBreakITContext : DbContext { public DbSet<Book> Boo...
asked by Alan B
Can I configure an interceptor yet in EntityFramework Core 1.0 rc2?
In entity framework 6 as shown in this ...blog post... there is a way to configure an interceptor which can log all slow queries including a stack backtrace....A question from 2015 about an earlier beta of what was then called EF7, suggests that it was no...
asked by Warren P
"dotnet has stopped working" StackOverflowException when adding database migration
I'm having a really annoying issue where every time I try to add a migration to my project, dotnet crashes and the migration is not created. This happens regardless of whether I use ...dotnet ef migrations add... or ...Add-Migration.... The command begins...
asked by Ceshion
ASP.NET Core EF Add-Migration command not working
Following this ...Microsoft Tutorial... when I run the ...PM> Add-Migration MyFirstMigration... command in VS2015 project created from the same tutorial I get the following error that I can't resolve:...More than one DbContext was found. Specify which one...
asked by nam
The term "Add-Migration" is not recognized
I'm using this ...MSDN Tutorial... to run in VS2015 the command ...PM> Add-Migration MyFirstMigration -context BloggingContext... that ran yesterday successfully but today it's giving the following error that is also pointed out by other users ...here....
asked by nam
ASP.NET Core Dependency Injection, inject with parameters
In an ASP.NET Core 1.0 project, using DI how can I pass parameters to constructor. For instance, how do I register the following service in Startup.cs. ...services.AddTransient(typeof(IStateService), new StateService());... does not work since StateServic...
asked by nam
Page 1 of 2