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    <p>There is several way for you to do that:</p> <p>-The first way is for you to use the Microsoft.Bcl.Async nuget package, this package enable you to use async/await in a windows phone 7 application and will enable you to "just get the return the value" by awaiting sampleRequest in a similar way as you would be doing it if it was not asynchronous:</p> <pre><code> private async Task&lt;WebResponse&gt; sampleRequest() { try { HttpWebRequest httpLoginRequest = (HttpWebRequest)WebRequest.Create(new Uri(DisplayMessage.Authentication_URL)); httpLoginRequest.Method = DisplayMessage.Get_Method; Parameters = new Dictionary&lt;string, string&gt;(); WebResponse webResponse =await httpLoginRequest.GetResponseAsync(); } catch (Exception ex) { throw ex; } } </code></pre> <p>That can be used in classB like this:</p> <pre><code> WebResponse response=await classAInstance.sampleRequest() </code></pre> <p>-the second way is to pass your own callback as parameter of sampleRequest:</p> <pre><code> public class State { public HttpWebRequest WebRequest { get; set; } public Action&lt;HttpWebResponse &gt; ResponseCallBack; } void sampleRequest(Action&lt;HttpWebResponse &gt; responseCallBack) { HttpWebRequest httpLoginRequest = (HttpWebRequest)WebRequest.Create(new Uri(DisplayMessage.Authentication_URL)); //httpLoginRequest.Method = DisplayMessage.Get_Method; //Parameters = new Dictionary&lt;string, string&gt;(); httpLoginRequest.BeginGetResponse(new AsyncCallback(GetLoginCallback), new State(){WebRequest = httpLoginRequest, ResponseCallBack = responseCallBack }); } private void GetLoginCallback(IAsyncResult asynchronousResult) { try { State state= (State)asynchronousResult.AsyncState; HttpWebResponse httpresponse = (HttpWebResponse)state.WebRequest.EndGetResponse(asynchronousResult); ... //Dispatch request back to ui thread Deployment.Current.Dispatcher.BeginInvoke(() =&gt; { state.ResponseCallBack(httpresponse ); }); } catch(WebException ex) { } } </code></pre> <p>which you can use in classB like this:</p> <pre><code>classAInstance.sampleRequest((httpResponse)=&gt;{ //Do what you want with http response here }); </code></pre> <p>-the third way would be to just add an event on your classA that you will trigger in tGetLoginCallback and register for the event in classB:</p> <pre><code> public event EventHandler&lt;Response&gt; LoginComplete; void sampleRequest(){ //identical original one .... } private void GetLoginCallback(IAsyncResult asynchronousResult) { try { HttpWebRequest httpRequest = (HttpWebRequest)asynchronousResult.AsyncState; HttpWebResponse httpresponse = (HttpWebResponse)httpRequest.EndGetResponse(asynchronousResult); ... //Dispatch request back to ui thread Deployment.Current.Dispatcher.BeginInvoke(() =&gt; { if (LoginComplete != null) { LoginComplete(this,response); } }); } catch (WebException ex) { } } </code></pre>
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    1. POhow to get response value from callback function wp7
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    1. USBenoit Catherinet
    1. USBenoit Catherinet
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    1. COcan you provide sample for the third way?????
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      1. USshanthi_karthika
    2. COupdated with sample for the third way
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      1. USBenoit Catherinet
    3. COcan you tel me where you have declared "myresponse". in second way
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      1. USshanthi_karthika
 

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