<add name="DefaultConnection" connectionString="Data Source=(LocalDb)MSSQLLocalDB;AttachDbFilename=|DataDirectory|aspnet-WebApplication1-20171104124939.mdf;Initial Catalog=aspnet-WebApplication1-20171104124939;Integrated Security=True" providerName="System.Data.SqlClient"/>

<add name="connectionStringName" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string="data source=den1.mssql1.gear.host;initial catalog=databaseName;user id=userName;password=userPassword;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" /></connectionStrings>

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext()
        : base("DefaultConnection", throwIfV1Schema: false)
    {
    }

    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }
}