private async void ShowContactCard_Click(object sender, RoutedEventArgs e)
{
Contact contact = CreatePlaceholderContact();
// Show the contact card next to the button.
Rect rect = MainPage.GetElementRect(sender as FrameworkElement);
// The contact card placement can change when it is updated with more data. For improved user experience, specify placement
// of the card so that it has space to grow and will not need to be repositioned. In this case, default placement first places
// the card above the button because the card is small, but after the card is updated with more data, the operating system moves
// the card below the button to fit the card's expanded size. Specifying that the contact card is placed below at the beginning
// avoids this repositioning.
Placement placement = Placement.Below;
// For demonstration purposes, we ask for the Enterprise contact card.
ContactCardOptions options = new ContactCardOptions()
{
HeaderKind = ContactCardHeaderKind.Enterprise
};
using (ContactCardDelayedDataLoader dataLoader = ContactManager.ShowDelayLoadedContactCard(contact, rect, placement, options))
{
if (dataLoader != null)
{
// Simulate downloading more data from the network for the contact.
this.rootPage.NotifyUser("Simulating download...", NotifyType.StatusMessage);
Contact fullContact = await DownloadContactDataAsync(contact);
if (fullContact != null)
{
// Update the contact card with the full set of contact data.
dataLoader.SetData(fullContact);
this.rootPage.NotifyUser("Contact has been updated with downloaded data.", NotifyType.StatusMessage);
}
else
{
this.rootPage.NotifyUser("No further information available.", NotifyType.StatusMessage);
}
}
else
{
this.rootPage.NotifyUser("ShowDelayLoadedContactCard is not supported by this device.", NotifyType.ErrorMessage);
}
// The "using" statement will dispose the dataLoader for us.
}
}
/// <summary>
/// This is the click handler for the 'Show contact card with delayed data loader' button.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void ShowContactCardDelayLoadButton_Click(object sender, RoutedEventArgs e)
{
// Create contact object with small set of initial data to display.
Contact contact = new Contact();
contact.FirstName = "Kim";
contact.LastName = "Abercrombie";
ContactEmail email = new ContactEmail();
email.Address = "*****@*****.**";
contact.Emails.Add(email);
// Get the selection rect of the button pressed to show contact card.
Rect rect = Helper.GetElementRect(sender as FrameworkElement);
using (ContactCardDelayedDataLoader dataLoader = ContactManager.ShowDelayLoadedContactCard(
contact,
rect,
Windows.UI.Popups.Placement.Below // The contact card placement can change when it is updated with more data. For improved user experience, specify placement
// of the card so that it has space to grow and will not need to be repositioned. In this case, default placement first places
// the card above the button because the card is small, but after the card is updated with more data, the operating system moves
// the card below the button to fit the card's expanded size. Specifying that the contact card is placed below at the beginning
// avoids this repositioning.
))
{
string message = "ContactManager.ShowDelayLoadedContactCard() was called.\r\n";
this.rootPage.NotifyUser(message, NotifyType.StatusMessage);
// Simulate downloading more data from the network for the contact.
message += "Downloading data ...\r\n";
this.rootPage.NotifyUser(message, NotifyType.StatusMessage);
Contact fullContact = await DownloadContactDataAsync(contact);
if (fullContact != null)
{
// We get more data - update the contact card with the full set of contact data.
dataLoader.SetData(fullContact);
message += "ContactCardDelayedDataLoader.SetData() was called.\r\n";
this.rootPage.NotifyUser(message, NotifyType.StatusMessage);
}
}
}
