Cannot find the memory leak

by

I have the same kind of app, with the next/previous picture buttons. And I had exactly the same memory leak, which has driven me mad.

I still haven’t been able to find the root cause, but I’ve managed to bypass it with a ugly hack. When displaying the next picture, I force the old image source to load an invalid picture, thus freeing the memory. I don’t understand why removing all references and calling the garbage collector isn’t enough, there must be another reference kept internally somewhere.

Anyway, here is the hack:

private void DisposeImage(BitmapImage image)
{
    if (image != null)
    {
        try
        {
            using (var ms = new MemoryStream(new byte[] { 0x0 }))
            {
                image.SetSource(ms);
            }
        }
        catch (Exception)
        {
        }
    }
}

You can call it for instance in your RefreshImage method:

private void RefreshImage()
{
    BitmapImage image = ImageHolder.Source as BitmapImage;
    ImageHolder.Source = null;

    DisposeImage(image);

    ImageHolder.Source = new BitmapImage(new Uri("000\\image" + (pageNum + 1).ToString("D3") + ".jpg", UriKind.Relative));
    RefreshTextData();
}

Kinda ashamed to use that, but at least it seems to work.

More Related Contents:

  1. Explicitly freeing memory in c#
  2. HttpClientHandler / HttpClient Memory Leak
  3. What is the correct way to free memory in C#
  4. Binding to list causes memory leak
  5. How do I put an image in VisualStudio with C#? [closed]
  6. share a message in Linkedin via windows phone
  7. High Quality Image Scaling Library [closed]
  8. Convert an image (selected by path) to base64 string
  9. How to get object size in memory? [duplicate]
  10. How can I insert an image into a RichTextBox?
  11. Reducing memory usage of .NET applications?
  12. Image sequence to video stream?
  13. “Parameter not valid” exception loading System.Drawing.Image
  14. OutOfMemoryException while populating MemoryStream: 256MB allocation on 16GB system
  15. Zoom and translate an Image from the mouse location
  16. Can itextsharp.xmlworker render embedded images?
  17. Loading image from code using relative path in Windows Forms
  18. Image.FromStream() method returns Invalid Argument exception
  19. Resize image in WPF
  20. Conversion of BitmapImage to Byte array
  21. C# – Convert WPF Image.source to a System.Drawing.Bitmap
  22. Placing Images and Strings with a C# Combobox
  23. trying to convert rgb from a .net Color to a string such as “red” or “blue”
  24. What are good algorithms for vehicle license plate detection? [closed]
  25. Memory Leak when using DirectorySearcher.FindAll()
  26. How to ignore false positive memory leaks from _CrtDumpMemoryLeaks?
  27. How can I add transparency to a c# form while keeping controls visible?
  28. Garbage Collection not happening even when needed
  29. How would the memory look like for this object?
  30. Memory usage in C#

Leave a Comment