Debug code-first Entity Framework migration codes

Question

I\'m using Entity Framework code first in my website and I\'m just wondering if there is any way to debug the migration codes. You know, like setting breakpoints and stuff l

Answer 1

To hit a break point in a db migration set the context to MigrateDatabaseToLatestVersion on initialise.

Database.SetInitializer(new MigrateDatabaseToLatestVersion());

Then you just debug as normal (run using f5) and the breakpoint will hit the first time you run the project.

The problem now is that if you debug a second time the migration will not run. This is because the __MigrationHistory table has been updated to say you have migrated to the latest version. To re-test the migration open the package manager console and downgrade to the previous migration:

Update-Database –TargetMigration: ThePreviousMigrationName