Can one set a breakpoint in EF code first migrations seed method?
It's not possible directly within source code but you can attach the debugger via source code. Please see this link for details:
if (System.Diagnostics.Debugger.IsAttached == false) System.Diagnostics.Debugger.Launch();
The other option would be to run the migration via source code as explained above:
var configuration = new Configuration();var migrator = new DbMigrator(configuration);migrator.Update();
Update-Database
runs out of your debugging session so you cannot set a breakpoint. You'll want to run your Seed method elsewhere from within your code, like a dummy method, that you can kick off from within your app.