public bool Eval(SongViewModel song)
{
switch (EvalType)
{
case MemberEvalType.Playlist:
PlaylistViewModel playlist = LibraryViewModel.Current.LookupPlaylistById(Target);
if (playlist == null)
{
return(false);
}
return(playlist.ContainsSong(song));
case MemberEvalType.Mix:
MixViewModel mix = LibraryViewModel.Current.LookupMixById(Target);
if (mix == null)
{
return(false);
}
return(mix.ContainsSong(song));
default:
DebugHelper.Alert(new CallerInfo(), "Unexpected MemberEvalType: {0}", EvalType);
return(false);
}
}