To check the If Exist condition (SqlServer) in linq using c#

public void IfExist(string username)

        {

            var name = dbcontext.userdetails.Any(s => s.username == username);

            if (name == true)

            {

                Console.WriteLine("Record Exists");

            }

            else

            {

                Console.WriteLine("Record Does Not Exists");

            }

        }