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Binding byte[] to image control in navigation application leaks

Posted By:      Posted Date: August 29, 2010    Points: 0   Category :WPF
Hi there, I have a (minimal) navigation application with two pages. Page1 contains an image. Switching between pages is done via a buttonhandler in code behind, for instance, (this.NavigationService.Navigate(new Page2())) The image is loaded in code behind via: private void LoadImage() { string fileName = "./images/image.bmp"; if (!new FileInfo(fileName).Exists) throw new Exception("File name doesn't exist"); using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read)) { this.ImageData2 = new byte[fs.Length]; fs.Read(this.ImageData2, 0, System.Convert.ToInt32(fs.Length)); fs.Close(); } } ImageData2 is a byte[] property that sends a propertychange event on changing. ImageData2 is bound to an image in xaml: <Image Grid.Row="1" Source="{Binding Path=ImageData2, Mode=OneTime}"/> When we unload Page1 the following clean up code is executed private void Page_Unloaded(object sender, RoutedEventArgs e) { this.ImageData2 = null; GC.Collect(); GC.WaitForPendingFinalizers(); GC.Collect(); } Now, when I start changing pages, I expect the Page we leave to unload, so the GC removes the byte array. However, it doesn't. Am I missing something? Binding the image to a BitmapImage (ImageData1, as you might have guessed:-) ) doesn't leak.

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