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copied!<p>I don't believe that will work since the service is still returning xml. jsonp is expecting a n object literal as an argument to pass to the callback. I believe if you run this locally you'll realize there's no data being consumable in your success. Try this </p> <pre><code>$.ajax({ type: "GET", url: "http://services.faa.gov/airport/status/IAD?format=json", dataType: "jsonp", success: function (data) { document.myform.result1.value = data.city; }, error: function (jqXHR, textStatus, errorThrown) { alert(errorThrown); } }); </code></pre> <p>Here is the example for creating a proxy with asp.net mvc 3. I just created an action that returns a ContentResult which maps to a string but I define the content type as text/xml. This simply just makes a webrequest to the service and reads the stream in to a string to send back in the response.</p> <pre><code>[HttpGet] public ContentResult XmlExample() { HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://services.faa.gov/airport/status/IAD?format=xml"); string xml = null; using (WebResponse response = request.GetResponse()) { using (var xmlStream = new StreamReader(response.GetResponseStream())) { xml = xmlStream.ReadToEnd(); } } return Content(xml, "text/xml"); } </code></pre> <p>Your xmlParser function will look like this:</p> <pre><code><script type="text/javascript"> var result; function xmlparser() { $.ajax({ type: "GET", url: "XmlExample", dataType: "xml", success: function (xml) { result = $(xml).find("City").text(); document.myform.result1.value = result; }, error: function (xml) { alert(xml.status + ' ' + xml.statusText); } }); } </script> </code></pre> <p>jQuery ajax's converts the data by using $.parseXML internally which removes the requirement for us to even call this in the success block. At that point you have a jQuery object that you can use it's default DOM functions to find the City Node. </p> <p>Make sure to replace the <strong>XmlExample</strong> with the url that it maps to based on your controller.</p>

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