Dispatcher Invoke multi control in one delegate? - wpf

Question

I am working on a WPF application,
I have to fetch the picasa album from google API and bind to WPF listview.
I have to bind to 2 listview and using Dispatcher.Invoke().
Below is the code snippet:
private void BindPicasa()
{
//My custom Google helper class.
GoogleClass google = new GoogleClass();
ThreadStart start = delegate()
{
Application.Current.Dispatcher.Invoke(DispatcherPriority.Normal,
new Action(delegate()
{
//Fetch the album list
List<AlbumClass.Album> album = google.RequestAlbum(GoogleID);
//bind to a 1st listview in text title.
ListLeftAlbum.DataContext = album;
//bind to a 2nd listview in thumbnail preview.
ListMainAlbum.Visibility = System.Windows.Visibility.Visible;
ListMainAlbum.DataContext = album;
}));
};
new Thread(start).Start();
}
The UI will freeze when start,
However if i take out each listview and run with its own Dispatcher, it is fine, the UI responsible, but it seems not elegant way to do so.
Any recommend? Thanks you!
private void BindPicasa()
{
//My custom Google helper class.
GoogleClass google = new GoogleClass();
ThreadStart start = delegate()
{
Application.Current.Dispatcher.Invoke(DispatcherPriority.Normal,
new Action(delegate()
{
//Fetch the album list
List<AlbumClass.Album> album = google.RequestAlbum(GoogleID);
}));
ListLeftAlbum.Dispatcher.Invoke(DispatcherPriority.Normal,
new Action(delegate()
{
//bind to a 1st listview in text title.
ListLeftAlbum.DataContext = album;
}));
ListMainAlbum.Dispatcher.Invoke(DispatcherPriority.Normal,
new Action(delegate()
{
//bind to a 2nd listview in thumbnail preview.
ListMainAlbum.Visibility = System.Windows.Visibility.Visible;
ListMainAlbum.DataContext = album;
}));
};
new Thread(start).Start();
}

Answer 1

your first version was almost right, you just need to fetch the album on the background thread instead of dispatching the request back to the ui thread
private void BindPicasa()
{
//My custom Google helper class.
GoogleClass google = new GoogleClass();
ThreadStart start = delegate()
{
//Fetch the album list
List<AlbumClass.Album> album = google.RequestAlbum(GoogleID);
Application.Current.Dispatcher.Invoke(DispatcherPriority.Normal,
new Action(delegate()
{
//bind to a 1st listview in text title.
ListLeftAlbum.DataContext = album;
//bind to a 2nd listview in thumbnail preview.
ListMainAlbum.Visibility = System.Windows.Visibility.Visible;
ListMainAlbum.DataContext = album;
}));
};
new Thread(start).Start();
}