SharePoint Update UserInfo List From AD

namespace UpdateList

{

    class Program

    {

        static void Main(string[] args)

        {

            Program pp = new Program();

            pp.XFunInsert();

        }

        private void XFunInsert()

        {

            using (SPSite oSite = new SPSite("http://localhost:650/sites/lms"))

            {

                using (SPWeb oWeb = oSite.RootWeb)

                {

                  

                    oWeb.AllowUnsafeUpdates = true;

                    using (StreamReader sr = new StreamReader("C:\\Users\\spadmin\\Desktop\\pass.txt"))

                    {

                        String line;

                        List<string> ComputerNames = new List<string>();

                        while ((line = sr.ReadLine()) != null)

                        {

                            try

                            {

                               

                                oWeb.EnsureUser(line);

                               

                                Console.WriteLine(line);

                            }

                            catch

                            {

                           

                            }

                         

                        }

                    }

                    oWeb.AllowUnsafeUpdates = false;

                   

                    

                  

                  

                }

            }

        }

    }

}