public void UpdateOverwievContact(DBOverviewContacts item)
        {
            SQLiteConnection connection = GetConnection();

            connection.CreateTable <DBOverviewContacts>();
            connection.Update(item);
        }
        public void AddOverwievContact(DBOverviewContacts item)
        {
            SQLiteConnection connection = GetConnection();

            connection.CreateTable <DBOverviewContacts>();

            //if (flag_added)
            connection.Insert(item);
        }