//Event to delete albums in treeview.
private void twAlbums_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Delete)
{
if (twAlbums.SelectedNode.Tag is Album album)
{
var result = MessageBox.Show(
$"Are you sure you want to delete album '{album.Title}'?\n" +
$"This will also delete ALL the tracks on that album.",
"Delete album",
MessageBoxButtons.OKCancel
);
if (result == DialogResult.OK)
{
if (album.Tracks != null)
{
var tracksToRemove = db.Tracks.Where(track => track.AlbumId == album.AlbumId).ToList();
db.RemoveRange(tracksToRemove);
}
db.Remove(album);
twAlbums.Nodes.Remove(twAlbums.SelectedNode);
db.SaveChanges();
daGrTracks.Rows.Clear();
}
}
}
}
private void twAddAlbums_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Delete)
{
if (twAddAlbums.SelectedNode.Tag is Artist artist)
{
var result = MessageBox.Show(
$"Are you sure you want to delete artist '{artist.Name}'?\n" +
$"This will also delete ALL the Albums and Tracks from that artist!",
"Delete Artist",
MessageBoxButtons.OKCancel
);
if (result == DialogResult.OK)
{
if (artist.Albums.Count != 0)
{
foreach (Album album in artist.Albums)
{
if (album.Tracks.Count != 0)
{
var tracksToRemove = db.Tracks.Where(t => t.AlbumId == album.AlbumId).ToList();
db.RemoveRange(tracksToRemove);
}
}
var albumsToRemove = db.Albums.Where(a => a.ArtistId == artist.ArtistId).ToList();
db.RemoveRange(albumsToRemove);
}
db.Remove(artist);
twAddAlbums.Nodes.Remove(twAddAlbums.SelectedNode);
db.SaveChanges();
}
}
}
}
