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Convert an Event-Based Template for an Asynchronous CTP Template

_fbClient.GetCompleted += new EventHandler<FacebookApiEventArgs>(OnFetchPageNotification); _fbClient.GetAsync(_kNotificationPath, new Dictionary<string, object> { { "access_token", _kPageAccessToken } });

How to convert the above code to the expected code in wp7:

  object = await _fbClient.GetAsync(_kNotificationPath, new Dictionary<string, object> { { "access_token", _kPageAccessToken } });

I also have a CTP Installed and a parallel task library.

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Async CTP introduced a document that describes how to adapt each existing template to a task-based Async template. It says that an event-based event is more variable, but gives one example:

 public static Task<string> DownloadStringAsync(Uri url) { var tcs = new TaskCompletionSource<string>(); var wc = new WebClient(); wc.DownloadStringCompleted += (s,e) => { if (e.Error != null) tcs.TrySetException(e.Error); else if (e.Cancelled) tcs.TrySetCanceled(); else tcs.TrySetResult(e.Result); }; wc.DownloadStringAsync(url); return tcs.Task; }

If the original function that wraps is DownloadStringAsync , the parameters correspond to the parameters passed to this function, and DownloadStringCompleted is the event that is being monitored.

(The same document looks downloadable here - the above example (and a more detailed description) refers to "Tasks and Asynchronous Events Based on Events" Template (EAP) ")

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Source: https://habr.com/ru/post/1439306/

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