Send bitmap parameter to another xaml page - windows

Question

In Windows Phone 8.1 , i have a ListView. My list is populated with an ObservableColection of Pictures. In class Pictures i have pictureName , and bitmapImage.
In ListView_Item_Click , i want to click a Picture and send it to another xaml page.
BitmapImage img = new BitmapImage();
img = ((Picture)e.ClickedItem).Image;//imi selectez imaginea care doresc!!
var image = new Image();
image.Source = img;
Frame.Navigate(typeof(Page2), image); in mainpage.xaml.cs

Answer 1

I wouldn't pass BitmapImage as a parameter of Frame.Navigate - it's not serializable and there will be a problem with SuspensionManager or Resuming/Suspending events.
The solution depends on your images - where to they come from - if it's a file, then you can just pass a path to that file and then in OnNavigated (for example), set the ImageSource from file.
Other method may be to set BitmapImage in target page, before it's navigated to - for example use static property:
public class TargetPage : Page, INotifyPropertyChanged
{
private static BitmapImage bmpImage;
public static BitmapImage BmpImage
{
get { return bmpImage; }
set { bmpImage = value; RaisePropertyChanged("BmpImage"); }
}
// rest of the code
Then you can just set the image before navigating:
TargetPage.BmpImage = img;
Frame.Navigate(typeof(TargetPage));
Also you should remember about Suspending and Resuming events and the case when your app is being terminated while it's Suspended. In every case you should somehow remember the source of the image - using SuspensionManager, PageState, Settings or other method.