I am using Windows authentication on my asp.net MVC 3 app. Is there any way possible to get the users information out of active directory?
I know I can user User.Name.Id
Of course!! If you're using .NET 3.5 or up, it's actually pretty easy.
Basically, use the System.DirectoryServices.AccoutManagement namespace (read all about it here: Managing Directory Security Principals in the .NET Framework 3.5).
Then: you need to "find" the user and grab it's properties - use code something like this:
// create domain context
PrincipalContext ctx = new PrincipalContext(ContextType.Domain);
// find the user
UserPrincipal user = UserPrincipal.FindByIdentity(ctx, "username");
if(user != null)
{
// access the user's properties in a nice, object-oriented way
}