I have 2 windows Azure Database serveur with same tables scheme on them but with differents data.  

In my asp.net site I connect with my first db like this:  

**Web.config**

```
<add name="FirstDBContext" connectionString="..." providerName="..." />

```

**DatabaseContext.cs**

```
public class FirstDBContext: DbContext
{
   public DbSet<Data> Datas{ get; set; }
}

```

**DatasController.cs**

```
private UsersContext db = new UsersContext();
public ViewResult Index()
{
   return View(db.Datas.ToList());
}

```

As you can see I have my db set in the code. How can I change this to be able to change dynamically to one DB to another with a drop list for example ?

Thanks a lot !