Registering New Users

Luis Alberto Delgado de la Flor

9y2.4k.NET

Hello,

I'm adding the functionality of adding new users to my project following this project:

http://www.c-sharpcorner.com/article/asp-net-core-mvc-authentication-and-role-based-authorization-with-asp-net-core/

However, I encounter a problem when I try to Add a new user:

On the Post Method of the UserController:

[HttpPost]
public async Task AddUser(UserViewModel model)
{
if (ModelState.IsValid)
{
ApplicationUser user = new ApplicationUser
{
Name = model.Name,
UserName = model.UserName,
Email = model.Email
};
IdentityResult result = await userManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
ApplicationRole applicationRole = await roleManager.FindByIdAsync(model.ApplicationRoleId);
if (applicationRole != null)
{
IdentityResult roleResult = await userManager.AddToRoleAsync(user, applicationRole.Name);
if (roleResult.Succeeded)
{
return RedirectToAction("Index");
}
}
}
}
return View(model);
}

I'm getting an error on this line:

When I put a break here, I see that result is null.

I'm trying to solve it on my own but no luck so far.

Any ideas? Thanks in advance for any help.

Regards,

4 Replies

Know the answer? Post it — somebody with the same question will find it here.

Nilesh Shah9y ago
Accepted answer
What error ? can you post that error?

If getting "null" is your error, then I will suggest you to put debug point on this line:
if (result.Succeeded)

and check the value in that line because your code uses "await" which makes the execution asychronous.
Nilesh Shah9y ago
I suggest you please close this question then as you are not expecting any answer,

and please mark my answer as "accepted" if it helped you
Luis Alberto Delgado de la Flor9y ago
Answer:

After checking the debug code, I noticed that the result variable needed for the password:

An Uppercase and a nonalphanumeric values in the password.

THAT was the issue, hehe. Thanks Nilesh!
Luis Alberto Delgado de la Flor9y ago
Hello, Nilesh.

The text for the error is this:

"InvalidOperationException: The view 'AddUser' was not found. The following locations were searched:
/Views/User/AddUser.cshtml
/Views/Shared/AddUser.cshtml"

However, this method must not return the AddUser view, but the Index view.

So, I put the debug on that line and saw that:
if (result.Succeeded)
Returns false. For that, I believe that the line before that was returning also a false/null
IdentityResult result = await userManager.CreateAsync(user, model.Password);
And indeed it was, but I can't figure out why yet. The user and model.Password arguments are sending their values (as seen in the picture).