How can I access Entity Type information in EF Core with code first?

Question

In Entity Framework Core, how can I access the Entity Type data (the entity names, regular properties, navigation properties, etc.) when using code-first? When using database-first, I can use Scaffolding or Reverse Engineering and from EF Core 7 onward, I can even use Custom Reverse Engineering Templates. I'd like to be able to access the same Entity Type information when using code-first whether that be in T4 or in plain C#. Based on the default T4 template in EF Core 7, the information I am after is in the Model parameter (of type Microsoft.EntityFrameworkCore.Metadata.IModel) that gets set as a parameter:

<#@ parameter name="Model" type="Microsoft.EntityFrameworkCore.Metadata.IModel" #>

I'm essentially asking a variation of this EF 6 question about DbContext Generation T4 Templates With Code-First but for EF Core.

petesramek · Accepted Answer · 2024-02-09 20:39:07Z

1

You can access it on an instance of DbContext. There is property Model available.

Related information

DbContext.Model Property

answered Feb 9, 2024 at 20:39

petesramek

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2 Comments

Svyatoslav Danyliv Over a year ago

@JohnCummings, DbSet property is syntax sugar, EF do not use in runtime these properties for functioning. Referencing Microsoft.EntityFrameworkCore.Design is tricky, check this my answer

John Cummings Over a year ago

Simple enough - thank you. Now I'm fighting getting access to the extensions methods such as GetDbSetName provided by ScaffoldingModelExtensions Visual Studio and the compiler can't seem to find them even with a using Microsoft.EntityFrameworkCore and using Microsoft.EntityFrameworkCore.Design and those packages installed.

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