New User Email verification in Asp.net in C# without using CreateUserWizard control .

The way to do this, is to write code. What do YOU think the code needs to do ? I'd guess that it needs to email the user and expect them to reply. Have you seen this done on the web ? It seems to me that the way it would work, is that you'd create a code, perhaps a GUID, and store it against the email address in your DB. You'd send a link to a verification page that passes in the email again and this guid ( so there's a pair of values people need to match, and no-one can do it at random ). Then, you'd look those up in that page, and mark that address verified.

This is a bit of pretty simple logic, you should consider trying to think for yourself before asking us questions that can be answered with simple observation and common sense. If you can't work out enough to have a starting idea on something like this, you're the last person I'd want writing code to deal with security and user verification on my website.