private void SelectionChanged(BandVM bandvm)
{
if (SelectedBand == null) return;
if (ShowCancel == "Visible") CancelUpdateBand(this);
_oldBand = SelectedBand.Copy();
SelectedBandGenres = BandGenre.GetBandGenres(SelectedBand.ID);
_oldBandGenres = BandGenre.GetBandGenres(SelectedBand.ID);
bandvm.ShowEdit = "Visible";
bandvm.ShowCancel = "Hidden";
bandvm.ShowSave = "Hidden";
Enabled = false;
}
private void EditBand(BandVM bandvm)
{
bandvm.ShowEdit = "Hidden";
bandvm.ShowCancel = "Visible";
bandvm.ShowSave = "Visible";
bandvm.Enabled = true;
}
private void SaveUpdateBand(BandVM bandvm)
{
// Check if valid
if (!SelectedBand.IsValid())
return;
int bandID = SelectedBand.ID;
// Save Changes
if (_oldBand == null)
{
// Insert into db
bandID = Band.AddBand(SelectedBand);
}
else
{
// Update db
Band.UpdateBand(SelectedBand);
}
// Check valid genre parameters
ObservableCollection<BandGenre> bandGenreResults = new ObservableCollection<BandGenre>();
foreach (BandGenre bg in SelectedBandGenres)
{
bool allreadyExists = false;
foreach (BandGenre bgr in bandGenreResults)
{
if (bgr.GenreID == bg.GenreID || bgr.GenreID == -1) allreadyExists = true;
}
if (!allreadyExists)
{
bg.BandID = bandID;
bandGenreResults.Add(bg);
}
}
// Delete the previous genres
if (_oldBandGenres != null)
{
foreach (BandGenre bg in _oldBandGenres)
{
BandGenre.DeleteBandGenre(bg);
}
}
// Add the new band genres
foreach (BandGenre bgr in bandGenreResults)
{
bgr.ID = BandGenre.AddBandGenre(bgr);
}
SelectedBandGenres = bandGenreResults;
// Update GUI
bandvm.ShowEdit = "Visible";
bandvm.ShowCancel = "Hidden";
bandvm.ShowSave = "Hidden";
Enabled = false;
}
private void DeleteBand(BandVM bandvm)
{
if (SelectedBand == null) return;
// Delete the previous genres
foreach (BandGenre bg in _oldBandGenres)
{
BandGenre.DeleteBandGenre(bg);
}
Band.DeleteBand(SelectedBand);
SelectedBand = new Band();
Enabled = true;
ShowEdit = "Hidden";
ShowCancel = "Hidden";
ShowSave = "Visible";
}
private void CancelUpdateBand(BandVM bandvm)
{
// Reset band
_changeNotify = false;
SelectedBand = _oldBand;
SelectedBandGenres = BandGenre.GetBandGenres(SelectedBand.ID);
bandvm.ShowEdit = "Visible";
bandvm.ShowCancel = "Hidden";
bandvm.ShowSave = "Hidden";
Enabled = false;
}
private void Browse(BandVM bandvm)
{
OpenFileDialog dlg = new OpenFileDialog();
dlg.DefaultExt = ".jpg";
dlg.Filter = "Image files (*.jpg, *.jpeg, *.png, *.gif)|*.jpg; *.jpeg; *.png; *.gif";
Nullable<bool> result = dlg.ShowDialog();
if (result == true)
{
ImagePathToByteArrayConverter converter = new ImagePathToByteArrayConverter();
SelectedBand.Picture = (byte[])converter.Convert(dlg.FileName, null, null, null);
OnPropertyChanged("SelectedBand");
}
}
private void AddGenre(BandVM bandvm)
{
if (SelectedBandGenres == null) return;
if (SelectedBandGenres.Count > 5) return;
SelectedBandGenres.Add(new BandGenre() { ID = -1, BandID = -1, GenreID = -1 });
OnPropertyChanged("SelectedBandGenres");
}
private void AddBand(BandVM bandvm)
{
SelectedBand = new Band();
SelectedBandGenres = new ObservableCollection<BandGenre>();
AddGenre(this);
_oldBand = null;
bandvm.ShowEdit = "Hidden";
bandvm.ShowCancel = "Visible";
bandvm.ShowSave = "Visible";
bandvm.Enabled = true;
}
