Pass Query String Into Register Form - asp.net-mvc

Question

I'm going to have a subscription flow as follows:
User goes to pricing page, chooses plan, is redirected to ../Register?planId=1
User registers with username and password, is forwarded to billing page, which needs to be ../Subscription/Billing?planId=1
I added an integer, planId, to my RegisterViewModel
On pricing page, I have the links working correctly.
For register controller, I have:
[AllowAnonymous]
public ActionResult Register(RegisterViewModel model, int planId)
{
if (Request.IsAuthenticated) {
return RedirectToAction("Pricing", "Home");
}
RegisterViewModel model1 = new RegisterViewModel();
model1.planId = Convert.ToInt32(Request.QueryString["planId"]);
return View(model1);
}
And in Register view I have:
#Html.HiddenFor(m => m.planId)
However, this value is blank everytime I've run the application. If I can get the planId to be included as part of the register form submission, then I think I can redirect the controller to "../Subscription/Billing?planId=1" after registration.
Here's the current register post controller, where I think I just need to add the planid to the redirectToAction:
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Register(RegisterViewModel model)
{
if (ModelState.IsValid)
{
var user = new ApplicationUser { UserName = model.Email, Email = model.Email, Role = "Admin", ReportsTo = "", ActiveUntil = DateTime.Now.AddDays(-1) };
var result = await UserManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
await SignInManager.SignInAsync(user, isPersistent:false, rememberBrowser:false);
// For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
// var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking here");
return RedirectToAction("Pricing", "Home");
}
AddErrors(result);
}
// If we got this far, something failed, redisplay form
return View(model);
}
My question is, how do I get the planid to pass from the query string to a hidden field in the login form?

Answer 1

You can try model1.planId = planId