how do i only allow letters and numbers, no spaces in usernames?
 

how do i only allow letters and numbers, no spaces in usernames during registrations.

Bumb

Bump Again.

I remember seeing a build in VB feature...or was I mistaken...now I can't find it.

AdminCP -> vBulletin Options -> User Registration Options -> Username Regular Expression

In the box put:

^[A-Za-z0-9]+$

This will allow A-Z capitals, a-z lowercase (even though user registrations are case insensitive) and 0-9, thus disallowing everything else.

Thank you sir.