Win8 C# Metro dispatcher and RPC_E_WRONG_THREAD

Question

I am trying to build an application using the unofficial Google music api for .net in Windows 8 metro interface. I am loading the whole playlist

foreach (GoogleMusicPlaylist p in pls.UserPlaylists)
                lbPlaylists.Items.Add(p.Title);

and it comes up with this error

HRESULT: 0x8001010E (RPC_E_WRONG_THREAD))

And I read around the internet and maybe I have to use dispatcher or something I am just generally confused.

Are you, by any chance, trying to access the UI from any other thread than the UI-thread? :) — Patryk Ćwiek, Oct 10 '12 at 14:59
@Trustme-I'maDoctor Yes you can see he is adding an item to a UIElement directly (this is not considered good practice, by the way). I think he likely just needs to use Dispatcher Invoke. — erodewald, Oct 10 '12 at 15:03

score 6 · Accepted Answer · answered Oct 10 '12 at 15:36

6

Use this

Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
            {
                foreach (GoogleMusicPlaylist p in pls.UserPlaylists)
                {
                    lbPlaylists.Items.Add(p.Title);
                }
            });

answered Oct 10 '12 at 15:36

Inder Kumar Rathore

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Win8 C# Metro dispatcher and RPC_E_WRONG_THREAD

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