public static Int32 UpdateContact(Int32 contact_id, Int32 user_id, string first_name, string last_name, string email, string phone, string memo)
 {
     return(BllContact.UpdateContact(contact_id, user_id, first_name, last_name, email, phone, memo));
 }
 public static Int32 DeleteContact(Int32 contact_id)
 {
     return(BllContact.DeleteContact(contact_id));
 }
        //public static ContactDS.ContactDSDataTable AddContact(string first_name, string last_name, string email, string phone)
        //{
        //    return BllContact.AddContact(first_name, last_name, email, phone);
        //}


        public static ContactDS.ContactDSDataTable SearchContact(string first_name, string last_name, string email, string phone)
        {
            return(BllContact.SearchContact(first_name, last_name, email, phone));
        }
 public static Int32 InsertContact(Int32 user_id, string first_name, string last_name, string email, string phone, string memo)
 {
     return(BllContact.InsertContact(user_id, first_name, last_name, email, phone, memo));
 }
 public static ContactDS.ContactDSDataTable GetUserContactId(Int32 user_id)
 {
     return(BllContact.GetUserContactId(user_id));
 }
 public static ContactDS.ContactDSDataTable GetContactByGuid(Guid contact_guid)
 {
     return(BllContact.GetContactByGuid(contact_guid));
 }
 public static ContactDS.ContactDSDataTable SelectContact(Int32 contact_id)
 {
     return(BllContact.SelectContact(contact_id));
 }
 public static ContactDS.ContactDSDataTable GetContactsByPhoneNumber(string phoneNumber)
 {
     return(BllContact.GetContactsByPhoneNumber(phoneNumber));
 }
 public static ContactDS.ContactDSDataTable GetAllContacts()
 {
     return(BllContact.GetAllContacts());
 }