Entity Framework : Change connection string at runtime

Question

Assuming there is an ASP.NET MVC application that uses Entity Framework 6 with code-first approach and StructureMap as IoC.
Also It uses Unit Of Work pattern. Here are the c

Answer 1

By default the name of the connection string to use in Entity Framework is inferred from the name of you DbContext class. However you can pass the connection string as a constructor parameter:

public class MyDbContext : DbContext, IUnitOfWork
{
    public MyDbContext(string connectionString)
        : base(connectionString)
    {
    }
}

Then you can configure StructureMap to pass in the current connection string e.g.

For().Use(ctx => new MyDbContext(TheConnectionStringToUse));

This could come from a static value that you set in your code, the current session etc.