private void ComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            var    image            = e.AddedItems[0] as ComboBoxItem;
            string currentOperation = image.Content.ToString();

            var       ttp       = sender as ComboBox;
            Playlists playlists = null;

            if (image != null && ttp.Tag is Playlists)
            {
                playlists = (Playlists)ttp.Tag;
            }

            if (playlists != null)
            {
                Create_Playlist create_Playlist = new Create_Playlist();
                Global_Log.pID          = playlists.PID;
                Global_Log.playlistName = playlists.Name;

                if (currentOperation == "Update")
                {
                    create_Playlist.SetProperty(playlists.Name.ToString());
                }
                else if (currentOperation == "Delete")
                {
                    create_Playlist.deletePlaylist(playlists.PID);
                }
                else if (currentOperation == "View")
                {
                    currentPlaylist = playlists.PID;

                    loadPlaylistSong(playlists.SortId, Global_Log.pID);
                }
                else if (currentOperation == "Schedule")
                {
                    currentPlaylist = playlists.PID;
                    Schedular schedular = new Schedular();
                    schedular.ShowDialog();
                    //loadPlaylistSong(Global_Log.pID, playlists.SortId);
                }
            }
            loadPlaylist();
        }