Entity Framework Core Archives

Category Archives for Entity Framework Core

EntityFramework Core – Add an implementation of IDesignTimeDbContextFactory – Multiple DbContext’s

Introduction We already talked about problem when Entity Framework Core tooling requires you to implement IDesignTimeDbContextFactory<DbContext> – check out this post. It gets interesting when you have more than one DbContext in your application and you want to add another implementation of IDesignTimeDbContextFactory, without repeating the code and making sure that EF Core tooling picks […]

Entity Framework Core Generic Repository

Introduction Entity Framework Core Generic Repository – Behold! The topic that some people will frown upon. They don’t even wanna talk about it. However, others love it, they feel all excited on the mention of generic repository pattern. As with everything, the generic repository pattern has its pros and cons. You are the one to […]

EntityFramework Core – Add an implementation of IDesignTimeDbContextFactory

Problem Your DbContext in a separate project – class library project. You are trying to add new migration and update database, and you are running into this error: Unable to create an object of type ‘CodingBlastDbContext’. Add an implementation of ‘IDesignTimeDbContextFactory’ to the project, or see https://go.microsoft.com/fwlink/?linkid=851728 for additional patterns supported at design time. […]