How to update / generate database table model?


I'm learning ASP.NET Core and I'm having some problems with the following scenario:

I created an extension class for IdentityUser provided by Microsoft.AspNetCore.Identity, the extension class add some extra field to the default database AspNetUsers:

public class ApplicationUser : IdentityUser
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public DateTime BirthDate { get; set; }
    public string LockoutMessage { get; set; }
    public string SessionId { get; set; }

I was able to update the table structure executing the following commands:

add-migration <migration name> -context <app context>


Suppose now I used the software Microsoft SQL Server Management Studio for create another table called UserDetails which have as FK the id of the AspNetUsers table.

I want generate the class inside the Models folder with all the properties from my application, so I don't need to write manually the property of the table of the new table, how can I do that?

I tried: update-database but not seems to work.

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1 Answer


The only way to bring in stuff from a database is with Scaffold-DbContext. However, that's an all or nothing affair. It's going to create entity classes for every table in the database (regardless of whether they already exist) and a DbContext to boot.

Either you're using code first and you create your entities and generate migrations that you run against the database OR you make changes to the database and then use the Scaffold-DbContext command to generate the context and all the associated entities. You cannot mix and match.

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