Entity Framework Core Tutorial - Knowledge Base (KB)
166 results for: in tag: asp.net
Entering keys manually with Entity Framework
I'm trying to use Entity Framework code first for a simple database project and I run into a problem I simply cannot figure out. ...I noticed EF was setting the ID for my tables automatically increasing by 1 each time, completely ignoring the value I ente...
asked by JCafe
ASP.NET vnext and open database
is there some possibility to work with an open database like mysql, mariadb or other and ASP.NET vNext? ...Perhaps a beta driver or something like that?
asked by Patrik
A relational store has been configured without specifying either the DbConnection or connection string to use
I using asp.net vnext and ef7 when i want adding user i getting this error:...A relational store has been configured without specifying either the DbConnection or connection string to use....What is this?...Consider my app start:...using DomainModels; u...
asked by user1968030
Dependancy Injected DbContext is empty after populating DbContext created with new (EF7, ASP.NET 5, vnext)
I am relatively new to EF7 and have heard that Dependency Injection of DbContexts into the Controller constructor is a good way to go about getting the DbContext for use within given Action methods. However, there are many situations where Dependency Inje...
asked by Ryan
ASP.NET MVC 6 - Assigning NOT NULL to the Primary Key in Entity Framework 7
Code:...migrationBuilder.AddPrimaryKey("AspNetRoles", "PK_AspNetRoles", new[] { "Id" }, isClustered: true); ...I am getting the error message as ...Cannot define PRIMARY KEY constraint on nullable column in table 'AspNetRoles'....Namespace of MigrationBui...
asked by user01928374655647382910019283
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
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
Getting sqlite to work in ASP.NET 5 (vnext)
I'm trying to get "EntityFramework....SQLite...": "7.0.0-beta1" to work within ASP.NET 5....I've created my project using Yeoman and installed EF sqlite from the package manager....The project builds fine but when running I get:...Could not load file or a...
asked by ryan g
Separation of concerns and n-tiered architecture in ASP.NET 5/ASP.NET Core 1
I'm struggling to find a graceful way to keep my DAL layer separate to my MVC/UI layer in ASP.NET 5 thanks to the new built in Dependency Injection which I want to use....For example I have an ASP.NET 5 project, a Business Layer project and a Data Access ...
asked by BenM
How can I access UserManager and RoleManager from a Console App?
How can I access ...UserManager... and/or ...RoleManger... in a non-hosted, ...asp.net-5... Console Application package?
asked by Stafford Williams
Generating code from an existing database EF7
I'm trying to ...generate code... from my ...database... but i get ...errors... : ...System.AggregateException: One or more errors occurred.... ---> Method not found...this is my project.json:...{ "webroot": "wwwroot", "version": "1.0.0-*", "dependencies...
asked by Amine
ObjectMaterialized and SavingChanges events in Entity Framework 7?
ObjectMaterialized... and ...SavingChanges... were two very useful events in previous versions of Entity Framework. Those events actually belonged to the underlying ...ObjectContext... API, which no longer exists in Entity Framework 7....So what are the c...
asked by Cat Nap
Including Identity User with Entity Framework doesn't work
I am having trouble including my Identity User in query results. Other entities are included just fine, no matter how many levels deep....Here's the model I'm using....Building * --- 1 City * * | / | / 1 ...
asked by SaphuA
Entity Framework 7 DbContext scaffold
I am trying to generate a ...DbContext... for an existing database structure using ASP.NET 5 and Entity Framework 7. Not surprisingly, there isn't a lot of documentation surrounding how to do this easily. Additionally, I want to scaffold ONLY the context;...
asked by awh112
UseSqlServer method missing MVC 6
I am trying to implement Entity Framework 7 in MVC 6, and on this page ...here... it says to do...services.AddEntityFramework() .AddSqlServer() .AddDbContext<MusicStoreContext>(options => options.UseSqlServer(Configuration[...
asked by Gillardo
Running DNX (EF7) database migration on Azure
I've been running a MVC project with ASP.NET 4.6 and EF7 locally and everything works fine. I ran the dnx . ef migration Initial commands to create the database tables, and everything ran fine. The app works. ...With Azure I have one problem, I can't seem...
asked by Joao Sousa
ASP.NET 5, EF 7 and SQLite - SQLite Error 1: 'no such table: Blog'
I followed the ...Getting Started on ASP.NET 5... guide about Entity Framework 7 and I replaced MicrosoftSqlServer with Sqlite, the only difference in the code is in Startup.cs:...services.AddEntityFramework() .AddSqlite() .AddDbContext<BloggingCo...
asked by Arthur Rump
ASP.NET 5 multiple dbcontext problems
I'm playing around with the new ASP.NET 5 beta 8 and having trouble when I have two dbcontext. ...I have the following project structure. ...-Data(Identity 3 db with other entities) -Resources (Contains a db with translations) -WebApp ...Stripped away so...
asked by user1619493
OnModelCreating undefined in Entity Framework 7
I am trying to setup my models' relations in EF7, but I faced the problem: ...OnModelCreating... method and ...DbModelBuilder... are undefined....At past, I used EF6, but now I try to migrate to EF7....Here is my code...protected override void OnModelCrea...
asked by Alexey Markov
Why EF7 doesn't have Find method?
I installed asp.net 5 and Ef 7 rc1 And i m trying to write a generic repository and i need the ...find... method For the "get" method , but it doesn't exists Is it on purpose , is there an alternative? is it a bug?
asked by WbbAndMobile
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