I have a web form that, upon user request, uploads an image file from the client to a server folder, makes a thumbnail and saves to another folder than sets an imageurl of an image control to that thumbnail. All fine up to here, problem is that at times (not always but could not find the exact pattern) when uploading an existing file, it throws a ' ... file used by another process ... ' error, both on the original image file and the created thumbnail. Is there a way to prevent the locking of these files or alternately, which object need I destroy to release the image file and avoid these contentions? I do destroy the image object immediately after thumbnail is created. Ideas anyone?
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