How do set IdentityResult?

Question

I'm in a situation where I need to validate a new (or updating) users' email address using some more complex rules.

I thought of using the User store that goes into the user manager but where and how does the IdentityResult get constructed?

Do I just throw an exception and that's it? Or is there some extra validation mechanism?

Subcartilaginous

Answer 1

IdentityResult takes an IEnumerable<String> in the constructor:

public IdentityResult(IEnumerable<string> errors)

These are the errors that will be passed back to the calling code.

Alternatively you can call this method:

var identityResult = IdentityResult.Failed("First error", "Second validation error");

This will be identical to the calling the constructor with list of strings.

Swamy

Looks like .NET Core doesn't accept an error list in the constructor anymore. Alternativelly you can call IdentityResult.Failed(msgs.ToArray()). – Chew

Answer 2

.NETCore has changed things. So to return a failed result where you assign your own errors you would have to create a fully qualified IdentityError instance for each error you want to pass.

Let's say for example you have the following errors and you want to returl a failed result with those errors:

var errors1 = "Your password is incorrect";
var errors2 = "Your email is not recognized";

To proceed and return a failed address for with these errors, you would do the following:

var result = IdentityResult.Failed(
   new IdentityError[] {
      new IdentityError{
         Code = "0001",
         Description = error1
      },
      new IdentityError{
         Code = "0002",
         Description = error2
      }
   }
);

Basically what's happeneing here is that the new Failed method of the IdentityResult expects params as IdentityError[]. Obviously, if you had many errors you'd create an IdentityError[] variable and then put all your errors in and then pass it to your Failed method.

Joletta

Answer 3

Do it like this :

var errorMessage = new IdentityError
                {
                    Description = "error message"
                };

                result = 
                    IdentityResult.Failed(errorMessage);

Kata

While this code may answer the question, providing additional context regarding how and/or why it solves the problem would improve the answer's long-term value. – Lishalishe