EF7 'dnx ef update database' not working

Can't update database using EF Migrations after updating to EF 6.0.0-alpha

OK. I have found the solution. It appears that EF expects the Primary Key constraint of ...__MigrationHistory... table to have the name ...PK_dbo.__MigrationHistory.... but it is ...PK___MigrationHistory.......So the following sql statements will do the trick....ALTER TABLE __MigrationHistory drop CONSTRAINT PK___MigrationHistory ALTER TABLE __Migr...

EF Database first how to update model for database changes?

Ensure that connections string in app.config is correct. I was using a DataDictionary and my connection string had the following path:...data source=|DataDirectory|*.sqlite ...Thus, it wasn't updating. Because this DataDirectory variable was being resolved at runtime.

How to update model working with EF code first with 'Code First from Database'

One more option is just delete the auto generated classes from the project and once again generate them. While following this approach only thing we need to make sure that is, we should give the same name for the data model(class name which inherits from DbContext ) as the previous one.Data model name is highlighted in below snap.

Database-first EF7-beta7 dnx ef dbcontext scaffold command fails

The right command is:...C:\Dev\Project>dnx ef dbcontext scaffold "Data Source=(localdb)\MSSQLLocalDB;Initial Catalog=ubercrew_relation;Integrated Security=True" EntityFramework.SqlServer ...Be sure to have installed the EntityFramework.SqlServer.Design package via nuGet

Running DNX (EF7) database migration on Azure

It seems that the EF team has eliminated the infamous database initializers and offers a more versatile method for that on version 7....Just use these methods in the pipeline before any call to the database,...yourDbContext.Database.EnsureCreated(); ...to create the database in case it doesn't exists and...yourDbContext.Database.Migrate(); ...to ap...

EntityState.Modified does work differently on updating in EF Core vs EF 6

Your error is stating that your Student has SchoolclassId and that value does not exist in the foreign table which is Id in Schoolclasses table....Check the value of SchoolclassId before calling SaveChanges. Most likely this value does not exist in Schoolclasses table....In other words this error is not because of EF 6 vs EF 7 but due to a foreign ...

Entity Framework Core - 'Update-Database' not working

The way I could solve the problem was in the following way, in order to understand the solution I placed the name of a fictitious connectionString. it´s solution ...public void ConfigureServices(IServiceCollection services) { services.AddDbContext<AuthenticDBContext>(options => options.UseSqlServer(Configuration.GetConnectionString("Connection...

EF Core 2.1 - Verify if database exists dont work after update

Did you install the latest 2.1 SDK? How are you running your app? When you run ...dotnet --version..., does it display ...2.1.300... ? Do you have the latest version of VS 2017 installed?...Those exceptions usually occur when you have a mismatch/incompatible dll versions. If you update everything, clear your bin/obj folder, it should work.

Entity Framework Core on Azure: Update-Database parameter –ConnectionString does not work

How can automate database migrations?...EF does not support Automatic migrations..., you may need to manually execute ...Add-Migration... or ...dotnet ef migrations add... for adding migration files. You could explicitly execute the command to apply the migrations, also you could apply migrations in your code....If you want to apply migration ...at...

EF Core - Removing a related entity from collection navigation property does not update database

Enity Framework delete related entities from principle Entity to Dependent Entity. In your Case Principle is the Blog and Post is the dependent entity. By Deleting Blog related Posts should also be deleted. You also need to decorate with Foreign key attribute, your class in that case will look like this....public class Post { public int PostId ...