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EFCore - Scaffold-DbContext how to use

EFCore versions, we don't have GUI to manage the DB-entities & dbContext like we used to have with EF6 (or EF5/4 version). With EFCore we've the Scaffold-DbContext command which helps us to create entities & DB context from our DB-objects. 

Let's see how to use Scaffold-DbContext:

Assume we're connecting with SQL Server so after creating a sample project you'll have to install EFCore related libraries as mentioned below. 

Install entity-framework-core for SQL Server, at this time 3.1.9 is the latest stable version 

  •  Microsoft.EntityFrameworkcore 
  •  Microsoft.EntityFrameworkCore.SqlServer 

To use Scaffold-DbContext, following two NuGet packages are required

  • Microsoft.EntityFrameworkCore.Tools 
  • Microsoft.EntityFrameworkCore.Design

Let's say we've two DB tables (e.g. dbo.Employees & dbo.Users ) 



Now let's see how to use Scaffold-DbContext to create c-sharp entities for those two tables:


Open Package manager console

Visual Studio => Tools => NuGet Package Manager => Package Manager Console



Your package manager console will appear like this:



Now run Scaffold-dbContext command like this:

Here in the connection string, either you can use integrate security or user-name/password combination. 
  • To create a separate directory for dbContext use -ContextDir option
  • To create custom dbContext name use -Context option 

the command is something like this. 

Before executing this command make sure you've selected the "Default project" where you want to create the entities & DB context (e.g. TestWebApp.DataAccess)  

Scaffold-DbContext 'Data Source=localhost;Initial Catalog=TestDatabase;Integrated Security=True' 
Microsoft.EntityFrameworkCore.SqlServer 
-OutputDir Models -Tables "Dbo.Employees","Dbo.Users" 
-ContextDir "MyContextDir" -Context MyTestContext


Atest successful execution of this command your "Package manager console" will be like this. 


And in your project, you can observe the related entities for your db-objects & your context 






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