void OnDialogPageCompleted(object sender, ReturnData args) {
// Set background from returned color
contentGrid.Background = new SolidColorBrush(args.ReturnColor);
// Set RadioButton for returned color
foreach (UIElement child in radioStack.Children)
if ((Color)(child as RadioButton).Tag == args.ReturnColor)
(child as RadioButton).IsChecked = true;
(sender as DialogPage).Completed -= OnDialogPageCompleted;
}
protected override void OnNavigatedFrom(NavigationEventArgs e) {
if (Completed != null) {
// Create ReturnData object
ReturnData returnData = new ReturnData();
// Set the ReturnColor property from the RadioButton controls
foreach (UIElement child in radioStack.Children)
if ((child as RadioButton).IsChecked.Value)
returnData.ReturnColor = (Color)(child as RadioButton).Tag;
// Fire the Completed event
Completed(this, returnData);
}
base.OnNavigatedFrom(e);
}