//poziva pri otvaranju prozora AddOffice pri dodavanju novi h
public AddArtistViewModel(AddArtist addArtistOpen)
{
artist = new vwArtist();
addArtist = addArtistOpen;
}
//poziva pri otvaranju prozora AddOffice ali pri editovanju nekog office-a
public AddArtistViewModel(AddArtist addArtistOpen, vwArtist ArtistEdit)
{
artist = ArtistEdit;
addArtist = addArtistOpen;
}
public AddArtist(vwArtist artistEdit)
{
InitializeComponent();
this.DataContext = new AddArtistViewModel(this, artistEdit);
}