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ActivateEmail throws an exception on invalid user id instead of throwing a UserFriendlyException #10465

rickfrankel created


Please answer the following questions before submitting an issue. YOU MAY DELETE THE PREREQUISITES SECTION.

  • What is your product version?
  • 10.3
  • What is your product type (Angular or MVC)?
  • Angular
  • What is product framework type (.net framework or .net core)?
  • .Net Core


This GetUserByIdAsync will throw an exception if the userID is not found. The code after it checks for user!=null and user ==null which would never happen and thus the user gets an UnFriendlyException message.

I change my code to

            var user = await UserManager.Users.FirstOrDefaultAsync(u => u.Id == input.UserId);

to get ensure we could get a null user.

PS: I'm not sure how my user actually got this error, but we had a case where someone was trying to activate with userid = 0 which threw this exception. We're still investigating that.

1 Answer(s)
  • 0
    ismcagdas created
    Support Team

    Hi @rickfrankel,

    Thank you for sharing this, I have changed the related line to;

    var user = await UserManager.FindByIdAsync(input.UserId.ToString());