Entity Framework Core - Knowledge Base (KB)
113 results for: in tag: asp.net-mvc
ASP.NET vNext EF7 dbContext issues
I am starting a vNext project, and I'm having some issues kicking it off the ground. I have added a table to the ...ApplicationDbContext... class, and it successfully created the table in the db (which in my case is in Azure). However, I can't seem to cor...
asked by max.io
Multiple dbContexts in ASP.NET vNext and EF7
I'm trying to get along with building web systems with ASP.NET vNext using MVC 6 and EF7. I'm looking at this tutorial: ...http://stephenwalther.com/archive/2015/01/17/asp-net-5-and-angularjs-part-4-using-entity-framework-7...On the page you'll see how to...
asked by jimutt
Override Default Identity Table Names
I would like to rename the default identity table names:...AspNetRoles...AspNetUserClaims ...AspNetUserLogins ...AspNetUserRoles...AspNetUsers...I understand how to do this using EF6:... protected override void OnModelCreating(System.Data.Entity.DbModelBu...
asked by Reafidy
Entity Framework 7 Reverse Engineering ASP.NET 5
I have been trying to migrate my database into web app model using EF7 _4. ...Couple things I realized is that the syntax/approach how to configure particular entities has been changed. ...Normally you generate POCO classes by using EF Power Tools (EF6), ...
asked by stenly
Entity Framework 7 and login failed
I'm trying to work with ef7 and asp.net mvc 6, but when i try to work with db there comes following exceptions:...Cannot open database "Posts" requested by the login. The login failed....Login failed for user 'alexpc\Alexandr'....In DbContext class i use...
asked by neonhash
Paging with Entity Framework 7 and SQL Server 2008
I'm trying to use paging (that is ....Skip(...).Take(...)... in Entity Framework 7. It works OK with Microsoft SQL Server 2012 and 2014, but fails with the following error on SQL Server 2008:...System.Data.SqlClient.SqlException (0x80131904): Incorrect sy...
asked by Konstantin
How to pass the UserId/TenantId to a Repository Constructor using Dependency Injection?
I am writting a multi-tenants web service using ASP.NET 5 and EF7. The Repository Data is specific to a tenant/user. Because I'll be using the TenantId in all the calls, I would like to initialize the Repository with the current TenantId....public class M...
asked by Martin
Is it possible to get complex Entity Framework objects from a REST api in .NET without creating ViewModel objects?
Imagine a set of Entity Framework entities: ...public class Country { public string CountryCode { get; set; } public string Name { get; set; } public string Flag { get; set; } } public class Market { public string CountryCode { get; set; ...
asked by Alex C
Update Database after Model Changes - Entity Framework 7
I have created an app using the lastest ASP.NET5 MVC 6 Entity Framework 7 and setup migrations using ...dnx . ef migration add Initial dnx . ef migration apply ...This works but when I make a change to the model the database is not updated. I would lik...
asked by Reafidy
The Registration Form return error "ArgumentNullException: Value cannot be null." in new MVC 6 project
I just have created a new simple MVC 6 project (with Entity Framework 7), I added the connection string to database in project.json...Then I made migration to create user tables in database....After run application, And when go to do register new user, I ...
asked by Bashar Abu Shamaa
Web Api (MVC 6) Chunked body did not terminate properly with 0-sized chunk
I am using MVC 6 rc1 with EF 7 rc 1 Code First Model to retrieve data over web api controller. I have 3 tables similar to below....class Product { public int Id { get; set; } public string SomeProperty { get; set; } public virtual ICollection<...
asked by TSR
ASP.NET MVC 6 Connection Sting config.json
The issue that I am having is when I run the program I get a "System.NullReferenceException" exception. Not sure what the problem is. This issue also doesn't allow me to start a data migration using dnx....#config.json { "Data": { "DefaultConnection...
asked by Erkan Demir
How to Inject Dependency of ApplicationDbContext in Repository MVC6
I'm using Asp.Net MVC 6 beta4 with Repository Pattern....In the my Startup.cs I have someting like this:...services.AddEntityFramework() .AddSqlServer() .AddDbContext<ApplicationDbContext>(options => ...
asked by Renatto Machado
The entity type 'Microsoft.AspNet.Identity.EntityFramework.IdentityUserLogin<string>' requires a key to be defined
I have a ASP.NET5 MVC application using EF7. It works all fine so far and i'm able to add migrations and persist data in the database. Now after adding Identity to my data layer project I get this error when trying to add a new migration:...The entity typ...
asked by Olaf D.
The entity type 'Microsoft.AspNet.Mvc.Rendering.SelectListGroup' requires a key to be defined
Not sure what happened but I am getting the following error while attempting to pull up any view in my web app. The code is auto generated by visual studio and I am not getting any errors before building. Using ASP.Net MVC 6, EF7....An exception of type '...
asked by G_Man
EF 7 : INSERT statement conflicted with the FOREIGN KEY SAME TABLE
I have an exception when I call SaveChangesAsync. My architecture is really simple, i have a Category class, wich contains...public class Category { public Guid ID {get; set;} public Guid? ParentId {get; set;} public Category Parent {get; set;} [..
asked by cdie
ASP.NET 5 EF 7 cannot update entry in database table
I am creating an API that will enable CRUD functionality to Create, Read, Update, and Delete record in database....I am running into an issue that is not allowing me to update entry inside a table due to an instance is shared and I get below error....cann...
asked by Ray
Configuring Oracle Database Access in EF7
I'm following the Pluralsight course on ...Building a Web App with ASP.NET 5, MVC 6, EF7 and AngularJS... and I'm having trouble configuring the Database connections to an exisiting Oracle Database. ...The tool I'm using is ...Visual Studio Code..., scaff...
asked by JSG_85
Accessing additional properties of an Identity user when retrieving data from the database using EF and Linq
Lets say I added a couple of additional properties to the default User when using asp.net identity:...public class ApplicationUser : IdentityUser { public string FirstName { get; set; } public string LastName { get; set; } } ...I am aware that in ...
asked by Blake Rivell
Entity framework 7 in ASP.NET MVC6 multiple foreign key to the same table
Hi I have the same problem that an old post that is here, the solution offer there doesn't work for me in MVC 6 with EF7 is simple ...public class Match { [Key] public int MatchId { get; set; } public DateTime playday { get; set; } public...
asked by Dennis Gonzalez
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