You could before, but nowadays you have to provide an .aspx-page. BUT, the .aspx-file does not need to exist.
Otherwise you could create a "/Templates/Pages/Empty.aspx" and use that one.
Erik is right -- you have to input it, but it doesn't have to exist. But then it throws a 404.
We usually create an ASPX file called "null.aspx" which does...nothing ("blank.aspx" would probably be a better name). It displays nothing but a blank screen. We map a handful of types to this if they have no reason to display anything.
Beware that you probably have input a valid, albeit non-existent, path. A colleague accidently pasted a string containing more text than the path, and when saved the page type could no longer be opened to edit the path again. I think he later removed it from the database directly. The string he accidently pasted caused some unhandled exception when the VPP tried to resolve it to a physical path.
Thanks for the reply...............:)
Is it possible to create a PageType without background aspx page. Pagetype without fileName.But available in Edit Mode.