Entity Framework 6.1.1 disable model compatibility checking

Question

I am running into the following error after updating EF to version 6.1.1:

An unhandled exception of type 'System.InvalidOperationException' occurred in EntityFramework.dll

Additional information: The model backing the TvstContext context has changed since the database was created. Consider using Code First Migrations to update the database ( http://go.microsoft.com/fwlink/?LinkId=238269 ).

We could fix this in the past as described in this question: Where is modelBuilder.IncludeMetadataInDatabase in EF CTP5?

However, I can't seem to get rid of the error.

Answer 1

这应该工作，把它放在派生的DbContext的构造函数中：

Database.SetInitializer<MyContext>(null);

Answer 2

You can also set it in Web.config file

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <appSettings>    
    <add key="DatabaseInitializerForType YourNamespace.YourDbContext, AssemblyName"
            value="Disabled" />
    </appSettings>
</configuration>

Decision from: http://www.entityframeworktutorial.net/code-first/turn-off-database-initialization-in-code-first.aspx

Answer 3

To expand on Dabblernl's answers:

public ApplicationDbContext()
        : base("DefaultConnection", throwIfV1Schema: false)
    {
        Database.SetInitializer<ApplicationDbContext>(null);
    }