protected void getAddressBookButton_Click(object sender, EventArgs e) {
			this.RegisterAsyncTask(
				new PageAsyncTask(
					async ct => {
						var google = new GoogleConsumer();

						XDocument contactsDocument =
							await google.GetContactsAsync(this.AccessToken, 5, 1, Response.ClientDisconnectedToken);
						var contacts = from entry in contactsDocument.Root.Elements(XName.Get("entry", "http://www.w3.org/2005/Atom"))
						               select
							               new {
								               Name = entry.Element(XName.Get("title", "http://www.w3.org/2005/Atom")).Value,
								               Email =
							               entry.Element(XName.Get("email", "http://schemas.google.com/g/2005")).Attribute("address").Value
							               };
						StringBuilder tableBuilder = new StringBuilder();
						tableBuilder.Append("<table><tr><td>Name</td><td>Email</td></tr>");
						foreach (var contact in contacts) {
							tableBuilder.AppendFormat(
								"<tr><td>{0}</td><td>{1}</td></tr>", HttpUtility.HtmlEncode(contact.Name), HttpUtility.HtmlEncode(contact.Email));
						}
						tableBuilder.Append("</table>");
						this.resultsPlaceholder.Controls.Add(new Literal { Text = tableBuilder.ToString() });
					}));
		}
		protected void Page_Load(object sender, EventArgs e) {
			this.RegisterAsyncTask(
				new PageAsyncTask(
					async ct => {
						var google = new GoogleConsumer();
						var accessToken = await google.RequestNewClientAccountAsync();
						using (var httpClient = google.CreateHttpClient(accessToken.AccessToken)) {
							await httpClient.GetAsync("http://someUri", Response.ClientDisconnectedToken);
						}
					}));
		}
		protected void Page_Load(object sender, EventArgs e) {
			this.RegisterAsyncTask(
				new PageAsyncTask(
					async ct => {
						if (!string.IsNullOrEmpty(State.GoogleAccessToken.Token)) {
							this.MultiView1.ActiveViewIndex = 1;
							if (State.FetchResponse != null && State.FetchResponse.Attributes.Contains(WellKnownAttributes.Contact.Email)) {
								this.emailLabel.Text = State.FetchResponse.Attributes[WellKnownAttributes.Contact.Email].Values[0];
							} else {
								this.emailLabel.Text = "unavailable";
							}
							this.claimedIdLabel.Text = this.User.Identity.Name;
							var google = new GoogleConsumer {
								ConsumerKey = Global.GoogleWebConsumer.ConsumerKey,
								ConsumerSecret = Global.GoogleWebConsumer.ConsumerSecret,
							};
							var contactsDocument = await google.GetContactsAsync(State.GoogleAccessToken);
							this.RenderContacts(contactsDocument);
						}
					}));
		}
		protected void Page_Load(object sender, EventArgs e) {
			this.RegisterAsyncTask(
				new PageAsyncTask(
					async ct => {
						var google = new GoogleConsumer();
						if (google.ConsumerKey != null) {
							this.MultiView1.ActiveViewIndex = 1;

							if (!IsPostBack) {
								// Is Google calling back with authorization?
								var accessTokenResponse = await google.ProcessUserAuthorizationAsync(this.Request.Url);
								if (accessTokenResponse != null) {
									this.AccessToken = accessTokenResponse.AccessToken;
								} else if (this.AccessToken.Token == null) {
									// If we don't yet have access, immediately request it.
									Uri redirectUri = await google.RequestUserAuthorizationAsync(GoogleConsumer.Applications.Contacts);
									this.Response.Redirect(redirectUri.AbsoluteUri);
								}
							}
						}
					}));
		}