C# MVC ASP.NET Identity - Dynamically change ApplicationDbContext connection string during runtime - asp.net-mvc

Question

I have 3 databases, one GlobalDb is used to manage and redirect users the correct database based on login details.
The other 2 databases are different to the GlobalDb but are the the same as each other.
Lets call these 2 databases Company1 and Company2.
GlobalDb does not require the identity framework so it is just being connected to by using standard EntityFramework connections, the other 2 do required the Identity framework.
3 connection strings are saved in the web.config.
I can query all databases bases correctly, and they all return data.
The main issue i am having is on login, how do i tell the SignInManager which connection string for the database to use?
IdentityModels.cs
public class CompanyDb : IdentityDbContext<ApplicationUser>
{
public CompanyDb(string CompanyName)
: base(CompanyName, throwIfV1Schema: false)
{
}
public static CompanyDb Create(string CompanyName)
{
return new CompanyDb(CompanyName);
}
// Virtual class and table mappings go here.
}
AccountController Login
public async Task<ActionResult> CustomLogin(string Email, string Password, string returnUrl)
{
GlobalDb Global = new GlobalDb();
// check what company the user belongs to based on email.
var CompanyName = Global.Users.Where(u => u.Email == Email && u.Active == true).Select(u => u.Company).FirstOrDefault();
// Connect to the desired database to get test data.
CompanyDb Company = new CompanyDb(CompanyName);
var DataTest = Company.Users.ToList();
if (CompanyName != null)
{
var result = await SignInManager.PasswordSignInAsync(Email, Password, false, shouldLockout: false); // <-- How to connect to the correct DB?
switch (result)
{
case SignInStatus.Success:
return RedirectToLocal(returnUrl);
case SignInStatus.LockedOut:
return View("Lockout");
case SignInStatus.RequiresVerification:
return RedirectToAction("SendCode", new { ReturnUrl = returnUrl, RememberMe = false });
case SignInStatus.Failure:
default:
ModelState.AddModelError("", "Invalid login attempt.");
return View("");
}
}
return View("");
}
I keep getting a null value in the following file and function
IdentityModel.cs
// You can add profile data for the user by adding more properties to your ApplicationUser class, please visit http://go.microsoft.com/fwlink/?LinkID=317594 to learn more.
public class ApplicationUser : IdentityUser
{
public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
{
// Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
// Add custom user claims here
return userIdentity;
}
}

Answer 1

Ive Figured it out.
On my login action if just wrapped the SignInManager within a Context Using statement as follows.
public async Task<ActionResult> CustomLogin(string Email, string Password, string returnUrl)
{
GlobalDb Global = new GlobalDb();
// check what company the user belongs to based on email.
var CompanyName = Global.Users.Where(u => u.Email == Email && u.Active == true).Select(u => u.Company).FirstOrDefault();
if (CompanyName != null)
{
using (CompanyDb db = new CompanyDb(CompanyName))
{
var result = await SignInManager.PasswordSignInAsync(Email, Password, false, shouldLockout: false); // <-- How to connect to the correct DB?
switch (result)
{
case SignInStatus.Success:
return RedirectToLocal(returnUrl);
case SignInStatus.LockedOut:
return View("Lockout");
case SignInStatus.RequiresVerification:
return RedirectToAction("SendCode", new { ReturnUrl = returnUrl, RememberMe = false });
case SignInStatus.Failure:
default:
ModelState.AddModelError("", "Invalid login attempt.");
return View("");
}
}
}
return View("");
}