public void DoLoadAndPlay(IEnumerable <string> items)
{
var needplay = false;
if (PlayList.Count < 1)
{
needplay = true;
}
PlayList.DoLoad(items);
if (needplay)
{
PlayList.NextTrack();
StartPlay();
}
else
{
Dispatcher.Invoke(() => { MainView.SelectedIndex = 1; });
}
DoBringIntoView();
}