User control problem

[Astroboy]

I have create a user control and set
public property PageTitle as string
get
return _pageTitle
end get
set(value as string)
_pageTitle=value
end set
end property
somehow it's doesn't show up on the property page(F4) and also when I go to
behind coding, it's doesn't have usercontrol listed, so cannot perform
assignment like
usercontrol1.pagetitle="hello"

Is it not support in ASP.NET???