Role manager GetRolesByUserName()

 hi everyone
 
i have implemented  .net security ( by ASP.NET Web Site Administration Tool)
now i have to  know  the logged in   user name and  role  .
for user name
userNameLb2.Text=HttpContext.Current.User.Identity.Name;
 
thts  working  :)
 
but what to  do to  find out the current user  role ???
 
 
please reply  fast

 
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