In this user guide, we describe some of the possible causes that can lead to the Silverlight 0x8000ffff catastrophic error, and then show you possible solutions to fix it.
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I hope it’s worth quoting Microsoft’s answer, as the error history above is absolutely brief and describes the complexities and offers a suggested solution.
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I need to dynamically load a mass (sometimes hundreds) of thumbnails. For performance reasons, I should choose this in a limited number of requests, or use a single request/response for testing. I’m passing the binary data for the images directly into the response and loading that company into BitmapImages using a MemoryStream.
It works fine until I load 80 more different thumbnails and then I use the crash exception. To make sure my data wasn’t corrupted, I tried downloading the BitmapImage multiple times with the same number of bytes and it crashed after about 80 downloads. Here is a diagram of how the image is lifted from the byte array, the exact byte array known to contain the actual image data (png): private LoadImage(byte bitmapimage imageData) BitmapImage img = clean BitmapImage(); Stream MemoryStream = new MemoryStream(imageData); picture.
SetSource(stream); // An exception is raised here if too many images are loaded. image return; I then use a BitmapImage as the source of an image element on the page, but I get errors on the img file. SetSource(…) above.
Adding GC.Collect() to the circle where I load thumbnails allows me to load multiple larger images so I think it has something to do with the memory employer but I don’t know what can I do to solve the difficulty. .net silverlight bitmapimage link|Improve this doubt asked Jul 8, 2011 4:01 PM toby326212 100% acceptance rate.
I’m sure that’s not the problem, but the MemoryStream still has ReadTimeout and WriteTimeout properties. Can the stream fail? — Danexxtone Jul 12 ’11 at 17:49 Tried to set ReadTimeout and got an exception: Timeouts will not be supported in this stream.
– Candice There is simply no channel you can market for img. SetSource directly?
Are you sure all the PNG files you uploaded have thumbnails, or are you uploading larger images that will be scaled by ourimage controls? Are these photographs of a photograph? — AnthonyWJones, July 9, 2011 6:52 pm I’m loading printer images with a single request, which is unbelievable, I can’t type request into img immediately.
SetSource (hence the byte array). The images are full size as I am caching them for the main frame of the display, but they are probably scanned documents and are quite large (most files are 100kb and 200kb). I’m most likely expecting some kind of memory error if the problem is getting too much data.
– Toby, There are a few more questions that can be answered especially quickly when you see the most important code.
I think it’s worth quoting Microsoft’s answer in the similar report above as it describes the specific issue very concisely and descriptively and offers a new recommended solution: if Silverlight loads a good image, the platform maintains the link and caches the decoded image sooner. or later, the control flow returns to the UI thread manager. If you put fattyin a tight loop, even though your application never retains the link, the image can’t release the image until we release our link, when flow control is likely to be restored. After processing 20 or more frames, you can use the Dispatcher to stop and set the next queue.
BeginInvoke is mainly used to parse work that experts think is done in batch mode. This will allow us to release snapshots that are not saved when the form is submitted. I understand that with the current decoding behavior, it’s not obvious that Silverlight will retain these references, but their decoder design change may affect other areas, so for now I’m supporting processing images like this that are in packages.
Well, if you’re actually trying to collect and store 500 images, each one will probably free up space depending on the image’s capacity. When working with a multi-page document, you may want to load pages in the background on demand and release them when they are not visible, with noFermenting multiple pages of a website so that you can only do so when you exceed reasonable memory limits.< /p>
I’ve filled the error log with the message “Microsoft has this problem: ‘Catastrophic failure’ exception thrown after loading too many BitmapImage objects from a stream. For now, I’ll try to work around this by using many more image files for images and/or not loading as many BitmapImages (unloading them if they are not in the visible area, and reloading both if they come from the right view).Click here to get a complimentary download that will help you speed up your PC.
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