ASP.NET Bootstrap Template Quickstart - Part 2: Using Email Address as UserName

When you first generate your application, the registration page insists on a UserName and Email Address from your clients, however it is more common to reduce the number of fields the user has to fill in as it increases registration.  The Email Address is much more valuable than the UserName as you can interact with it.

There are a couple changes you must make to use Email Address as the UserName:

1. Change the UserName field to Email Address.
   
2. In the control open tag you must add RequiresEmail=false
   If you forget to set this you will get the error message: 

   RegisterUser: CreateUserWizardStep.ContentTemplate does not contain an IEditableTextControl with ID Email for the e-mail, this is required if RequireEmail = true.

3. Next you will want to add a validator to your username field to ensure it is in email format.  There are a few ways to do it.  You can use the RegEx Validator as a minimum or extend it to do a DNS lookup depending on your needs. Below is a sample I got from a StackOverflow article:
   
   <asp:RegularExpressionValidator ID="regexEmailValid" runat="server" ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*" ControlToValidate="tbEmail" ErrorMessage="Invalid Email Format"></asp:RegularExpressionValidator>

If you have any tips, tricks or resources you would like to share with the guild email me at chris.williams@readwatchcreate.com