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POSilverlight 4.0: Using WebClient UploadStringAsync POST request to .Net 4 Webservice
 

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  1. POSilverlight 4.0: Using WebClient UploadStringAsync POST request to .Net 4 Webservice
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    <p>I'm trying to get this code to run:</p> <p>Silverlight App xaml.cs:</p> <pre><code>private void SavePoiRequest(MyPushpin pin) { WebClient wc = new WebClient(); wc.Headers["Content-Type"] = "application/x-www-form-urlencoded"; wc.Encoding = Encoding.UTF8; wc.UploadStringCompleted += new UploadStringCompletedEventHandler((sender, e) =&gt; { if (e.Error != null) { return; } AddressTextBox.Text = e.Result; }); String name = pin.Name; String lat = pin.Location.Latitude.ToString().Replace(",","."); String lng = pin.Location.Longitude.ToString().Replace(",","."); String address = pin.Address; String photodesc = pin.PhotoDesc; String poistory = pin.Tag.ToString(); StringBuilder sr = new StringBuilder(); sr.Append("createpoi?name="+name+ "&amp;lat=" + lat + "&amp;lng=" + lng + "&amp;adr=" + address + "&amp;desc=" + photodesc + "&amp;story=" + poistory); String parameter = sr.ToString(); wc.UploadStringAsync(new Uri("http://localhost:80/"), "POST", parameter); AddressTextBox.Text = parameter; } </code></pre> <p>Webservice cs:</p> <pre><code>[WebInvoke(UriTemplate = "createpoi?name={name}&amp;lat={latitude}&amp;lng={longitude}&amp;adr={address}&amp;desc={photodescription}&amp;story={poistory}", Method = "POST")] public String SetPoiPOST(string name, string latitude, string longitude, string address, string photodescription, string poistory) { int newid = -1; POI_Man poimanager = new POI_Man(); MemoryStream resultstream = new MemoryStream(); if (!string.IsNullOrEmpty(name) &amp;&amp; !string.IsNullOrEmpty(latitude) &amp;&amp; !string.IsNullOrEmpty(longitude) &amp;&amp; !string.IsNullOrEmpty(address) &amp;&amp; !string.IsNullOrEmpty(photodescription) &amp;&amp; !string.IsNullOrEmpty(poistory) ) { //newid = poimanager.CreatePOI_alt(address, name, photodescription, poistory); newid = poimanager.CreatePOI(name, latitude, longitude, address, photodescription, poistory); poimanager.Generate("xml"); resultstream = poimanager.WriteMessage(newid.ToString()); WebOperationContext.Current.OutgoingResponse.ContentType = "text/plain"; } if (poimanager.NoError) { resultstream = poimanager.WriteMessage(newid.ToString()); WebOperationContext.Current.OutgoingResponse.ContentType = "text/plain"; //resultstream = (this.GetPoi(newid.ToString()) as MemoryStream); } else { resultstream = poimanager.WriteMessage("Beim anlegen des POI ist ein Fehler aufgetreten." + Environment.NewLine + "Haben Sie einen Parameter vergessen?"); WebOperationContext.Current.OutgoingResponse.ContentType = "text/plain"; } return newid.ToString(); } </code></pre> <p>The web service doesn't get nothing from the client. Am I doing something wrong?</p> <p>I can contact the Server via a POST-request through WebClient OpenWriteAsync. But I need the response of the server for the lastID, so I use UploadStringAsync instead. Could you please help me?</p> <p>Bye Chau</p>
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