Using webclient to call a webservice method

UploadStringCompleted: <?xml version="1.0" encoding="utf-8"?><soap:Envelope xmln
s:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/
2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body
><HelloWorldResponse xmlns="http://tempuri.org/"><HelloWorldResult>Hello Karthik
 mushyam</HelloWorldResult></HelloWorldResponse></soap:Body></soap:Envelope>

static void Main(string[] args)
       {
           WebClient client = new WebClient();
           string request1 = "<soap:Envelope\r\n  xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'\r\n  xmlns:xsd='http://www.w3.org/2001/XMLSchema'\r\n  xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'>\r\n <soap:Body><HelloWorld xmlns=\"http://tempuri.org/\"><name>Karthik mushyam</name></HelloWorld></soap:Body></soap:Envelope>";
           client.Headers.Add(HttpRequestHeader.ContentType, "text/xml");
           client.Headers.Add("SOAPAction", "http://tempuri.org/HelloWorld");
           client.UploadStringCompleted += new UploadStringCompletedEventHandler(client_UploadStringCompleted);
           client.UploadStringAsync(new Uri("http://localhost:52375/MyFirstWebService/Service.asmx"), request1);
           Console.ReadLine();
       }
       static void client_UploadStringCompleted(object sender, UploadStringCompletedEventArgs e)
       {
           Console.WriteLine("UploadStringCompleted: {0}", e.Result);
       }