Changing Asp.NET Identity Authentication to register email address, but never username

Question

This link here lists model class and view class properties to change in order to prompt the user for email and password log in, rather than the default username and password required by Asp.NET Identity Authentication. However, it does not demonstrate how to remove the requirement of creating a username upon registration for the user in Identity.

Can someone point me to a resource that would allow me to completely remove the username requirement from Identity Authentication? I don't want my users to have to complete this extraneous step.

UPDATE::

according to this example here on Identity email-authentication, installing the Visual Studio 2013 Update 2 allows users to complete registration with email, and NOT username:

enter image description here

Big yay.

Are you using ASP.NET Identity (MVC 5+) or Simple Membership (used in the link provided)? — Anthony Chu
– Anthony Chu, Commented Jun 2, 2014 at 20:58

Horizon_Net · Accepted Answer · 2014-06-03 16:14:33Z

1

The best way would be to create your own custom user validator. With a custom validator you can write your own logic to check if a user name is valid (in your case if the user name is an email address). This approach does not remove the user name from Identity, but it ensures that your user name is a valid email address.

An example how to implement one can be found here. Be aware that this solution was built upon Identity 1.0. Nevertheless, it should work the same way.

BTW, your link points to Simple Membership (as mentioned by @Anthony), not ASP.NET Identity as mentioned in the rest of your question.

EDIT

As mentioned in the comments, here's the answer again:

I haven't tried it yet, but I would guess that it is not possible when you're using the Entity Framework implementation. There the implementation uses the IdentityUser class which implements the IUser interface from Identity. Even the IUser interface contains a user name property.

edited Jun 3, 2014 at 16:14

answered Jun 2, 2014 at 21:09

Horizon_Net

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4 Comments

Rachael Over a year ago

Ah, thank you for pointing that out about the SimpleMembership link. Is it not possible to alter the Identity registration requirements and completely replace username credential with email?

Horizon_Net Over a year ago

I haven't tried it yet, but I would guess that it is not possible when you're using the Entity Framework implementation. There the implementation uses the IdentityUser class which implements the IUser interface from Identity. Even the IUser interface contains a user name property.

Rachael Over a year ago

that's what I needed to hear. Please repost comment as answer so I can accept it. Thank you both.

Rachael Over a year ago

oh oops. I misread your comment and answer to be posted by two different people. I could have just accepted to get you those points. Thanks again!

Rachael · Accepted Answer · 2014-06-16 16:25:55Z

1

UPDATE::

according to this example here on Identity email-authentication, installing the Visual Studio 2013 Update 2 allows (using MVC web template) users to complete registration with email, and NOT username:

enter image description here

Big yay.

answered Jun 16, 2014 at 16:25

Rachael

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