public class DataService
    {
        // Class to handle all data retrievals and management
        private static dsWLQueues dslWLQueues = new dsWLQueues();

        public static dsWLQueues Queues {get { return dslWLQueues; } set { dslWLQueues = value; dslWLQueues.AcceptChanges(); } }

        public static void LoadAllData()
        {
            dsWLQueuesTableAdapters.SongQueueNamesTableAdapter daSongQueueNames = new dsWLQueuesTableAdapters.SongQueueNamesTableAdapter();
            dslWLQueues.Clear();
            daSongQueueNames.Fill(dslWLQueues.SongQueueNames);

            dsWLQueuesTableAdapters.SongQueuesTableAdapter daSongQueues = new dsWLQueuesTableAdapters.SongQueuesTableAdapter();
            daSongQueues.Fill(dslWLQueues.SongQueues);
        }

public class QueueList : System.Windows.Forms.UserControl
    {
        private dsWLQueues dsSongQueues;
        dsSongQueues = DataService.Queues;
            ...some code that displays and updates/deletes/adds data...
        DataService.Queues = dsSongQueues;
    }

public static DataTable Codes { get { return dtWLCodes; } }
        public static DataTable Songs { get { return dtWLSongs; } }
        public static DataTable SongLyrics { get { return dtWLSongLyrics; } }
        public static void Commit (string sTable = "")
        {
            if (sTable == "" || sTable == "Songs") { daWLSongs.Update(dslWLSongs.Songs); }
            if (sTable == "" || sTable == "SongLyrics") { daWLSongLyrics.Update(dslWLSongs.SongLyrics); }