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

Add two different Connection String in App.Config File using different Name.

Set Current connection String Name in Entity Constructor using Overloading.

In Code File

public ASM_DBEntities()
        : base("name=ASM_DBEntities")
    {
    }

    public ASM_DBEntities(string conn)
        : base("name=ASM_DBEntities1")
    {

    }

When we pass string with object then is use different connection string.