How to check if currently logged in user is admin or not

Question

How can I check in sitecore that the current user is an administrator?

something like:

if(User.Current.Name == "extranet\Admin")
// then do some thing ??

Answer 1

Sitecore.Security.Accounts.User class has built in property IsAdministrator:

    Sitecore.Context.User.IsAdministrator