add a key to user registration for validation

I am integrating a key/paraphase into the .net create user membership registeration page. I got everything connected however I cant seem to stop the creation of the user. When the key is invalid, I exit the sub and it still creates the user. I cant seem to stop it from creating the user even when the key is invalid.

Protected Sub CreateUserWizard2_CreatedUser(ByVal sender as object, ByVal e as eventargs) handles CreateUserWizard2.CreatedUser
Dim Flag as boolean
Flag=false

If Flag=false then
lblmessage2.Text="INVALID"
Exit Sub
Else
Create()
End If
End Sub
RylaAsked:
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MlandaTConnect With a Mentor Commented:
More complete:
Sub Createuserwizard2_CreatingUser(ByVal sender As Object, ByVal e As LoginCancelEventArgs) Handles Createuserwizard2.CreatingUser
       If Not IsValidEmail(Createuserwizard2.UserName) Then
           message = "You must enter a valid e-mail address."
            e.Cancel = True
        Else
            message = String.Empty
        End If
End Sub

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Kyle AbrahamsSenior .Net DeveloperCommented:
handles CreateUserWizard2.CreatedUser

From the looks of it CreatedUser happens after the fact.  I think you want to trap on the submit.

Instead of exit sub, can you call a delete user to remove the newly created user?
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ZhaolaiCommented:
The event you called is CreatedUser, which means the event will fire after the user has already been created.

Change this to an event before creating user or in the middle of creating user, like CreateUser or CreatingUser.
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MlandaTCommented:
http://msdn.microsoft.com/en-us/library/txa0s749.aspx

You are using the wrong event... use the CreatingUser event:
Set "e.Cancel = true" if you dont want to create the user.

     If Not IsValidEmail(Login1.UserName) Then
           message = "You must enter a valid e-mail address."
            e.Cancel = True
        Else
            message = String.Empty
        End If
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RylaAuthor Commented:
Thank you so much!! You saved me from a headache!
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