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POHow to call an asynchronous method?
 

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  1. POHow to call an asynchronous method?
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    <p>I am trying to do a simple app that gets the current location in windows 8, but I cant find the correct syntax of the await keyword.</p> <p>The error says: Error 1 The 'await' operator can only be used within an async method. Consider marking this method with the 'async' modifier and changing its return type to 'Task'. </p> <p>The code is as follows:</p> <pre><code>public MainPage() { this.InitializeComponent(); TextBlock txt = new TextBlock(); var location = await InitializeLocationServices(); txt.Text = location; Grid.SetRow(txt, 0); Grid.SetColumn(txt, 1); //InitializeLocationServices(); } /// &lt;summary&gt; /// Invoked when this page is about to be displayed in a Frame. /// &lt;/summary&gt; /// &lt;param name="e"&gt;Event data that describes how this page was reached. The Parameter /// property is typically used to configure the page.&lt;/param&gt; protected override void OnNavigatedTo(NavigationEventArgs e) { } private async Task&lt;string&gt; InitializeLocationServices() { //Initialize geolocator object Geolocator geoLocator = new Geolocator(); if (null != geoLocator) try { //Try resolve the current location var position = await geoLocator.GetGeopositionAsync(); if (null != position) { string city = position.CivicAddress.City; string country = position.CivicAddress.Country; string state = position.CivicAddress.State; string zip = position.CivicAddress.PostalCode; string msg = "I am located in " + country; if (city.Length &gt; 0) msg += ", city of " + city; if (state.Length &gt; 0) msg += ", " + state; if (zip.Length &gt; 0) msg += " near zip code " + zip; return msg; } return string.Empty; } catch (Exception) { //Nothing to do - no GPS signal or some timeout occured.n . return string.Empty; } return string.Empty; } </code></pre>
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    1. USLuis Valencia
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    1. COthe issue is you're trying to call it in a constructor, this is not possible i dont think, not to mention a horrible idea to begin with. This has SO question has an answer for "CAn constructors be async" http://stackoverflow.com/questions/8145479/can-constructors-be-async
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    2. COcan you please provide code how can I fix this? I dont care to move it from the constructor.
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    3. COdunno, not familiar with win8 apps page lifecycle, maybe try calling it OnNavigatedTo and mark that as async
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