问题
When you create the Register Control for the SqlMembersipProvider nothing happens if they register and the username or email is in use. Is there a tutorial or override function that fixes this in asp.net 2.0
回答1:
You may need to register an event handler for the LoginError event.
See this article for lots of details: http://aspnet.4guysfromrolla.com/articles/120705-1.aspx
回答2:
You most certainly should see a red error message indicating that the operation failed and why.
If you do not see this then there is something hinky with the way you have built your create-user page.
Try simply dragging a CreateUserWizard onto a new WebForm and try what you describe.
And nick is correct in saying that you really should acknowledge the time and effort people take to help you with your problems by taking 2 seconds and clicking upvote and/or accept.
That is the way that stackoverflow works and if you don't get with the program you are going to be ignored.
来源：https://stackoverflow.com/questions/3313771/sqlmembershipprovider-question