private void CreateNewPlaylistBtnClick(object sender, RoutedEventArgs e)
{
AddPlaylistWindow addPlaylistWindow = new AddPlaylistWindow();
addPlaylistWindow.ShowDialog();
Displayer.Display(PlaylistsListBox, DisplayTag, MyDataStorage);
}
private void MenuItem_Click_1(object sender, RoutedEventArgs e)
{
AddPlaylistWindow addPlaylistWindow = new AddPlaylistWindow(selectedPlaylist);
addPlaylistWindow.ShowDialog();
}