title: Not able to use webClient.DownloadStringCompleted in WP7?
body: <p>I have a simple code:</p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Net;
  using System.Windows;
  using System.Windows.Controls;
  using System.Windows.Documents;
  using System.Windows.Input;
  using System.Windows.Media;
  using System.Windows.Media.Animation;
  using System.Windows.Shapes;
  using Microsoft.Phone.Controls;
  using System.IO;
  
  public partial class WebClient : PhoneApplicationPage
  {
      public WebClient()
      {
          InitializeComponent();
      }
  
      private void button1_Click(object sender, RoutedEventArgs e)
      {
          WebClient webclient = new WebClient();
  </code></pre>
  
  <p>Now when I say <code>webClient.</code>, I expected to see DownloadStringCompleted in the IntelliSense dropdown but I dont see. And when I force use it, ofcourse it doesn't compile. What is the problem?</p>
  
  <p>I am testing WebClient to see if it is of use in my project since I am fed up with the async calls and multiple threads associated with HttpWebRequest</p>