public class DomainHelper    {        public static void SetDomainValue(string key, object password)        {            AppDomain.CurrentDomain.SetData(key, password);        }        public static T GetDomainValue
      
       (string key)        {             object value=AppDomain.CurrentDomain.GetData(key) ;            if(value==null)return default(T);            return (T)value;        }    }