Out Of Memory exception on System.Drawing.Image.FromFile()

asp.net image bitmap
dooburt picture dooburt · Jul 10, 2009 · Viewed 76.3k times · Source

I have an image uploader and cropper which creates thumbnails and I occasionally get an Out Of Memory exception on the following line:

Dim bm As Bitmap = System.Drawing.Image.FromFile(imageFile)

The occurance of the error is tiny and very rare, but I always like to know what might be causing it. The imageFile variable is just a Server.MapPath to the path of the image.

I was curious if anyone had experience this issue previously and if they had any ideas what might be causing it? Is it the size of the image perhaps?

I can post the code if necessary and any supporting information I have, but would love to hear people's opinions on this one.

Answer

Jon Skeet picture Jon Skeet · Jul 10, 2009

It's worth knowing that OutOfMemoryException doesn't always really mean it's out of memory - particularly not when dealing with files. I believe it can also happen if you run out of handles for some reason.

Are you disposing of all your bitmaps after you're done with them? Does this happen repeatably for a single image?

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