WPF表单中的控件有限（win32exception与每个窗口10,000个控件冲突）

Question

I have a program running fine but when it hit nearly 10,000 images in WPF form thrown exception System.ComponentModel.Win32Exception: The operation completed successfully.

it so weird, sounds poor design, but functioning well as per the requirements. Without splitting process in to multiple, is there any better way that helps in getting rid of this issue and allow users to process over 10,000 images (controls in form).

I have double checked unmanged code disposed properly and used using blocks etc..

Background : Application creates image thumbnails of PDF pages and the images are stored in cache. Application is working well in handling a big load in giga bytes though it takes fair bit of time to create images on screen .(this is an acceptable delay)

Answer 1

It sounds like you have reached the Windows limit of 10,000 user handles .

You might want to try batching up the processing, or maybe using a virtualizing panel like the VirtualizingStackPanel to display the images. This will only create UI controls as they are scrolled into view.