public Model.Music Next()
{
if (Musics.Count() == 0)
{
return(null);
}
++_CurrentIndex;
_CurrentIndex %= Musics.Count();
return(Musics[_CurrentIndex]);
}
public Model.Music Prev()
{
if (Musics.Count() == 0)
{
return(null);
}
if (_CurrentIndex > 0)
{
--_CurrentIndex;
}
else
{
_CurrentIndex = Musics.Count() - 1;
}
return(Musics[_CurrentIndex]);
}