GDI+ System.Drawing.Bitmap gives error Parameter is not valid intermittently

Question

I have some C# code in an ASP.Net application that does this:

Bitmap bmp = new Bitmap(1184, 1900);

And occasionally it throws an exception \"Parameter is not val

Answer 1

Everything I've seen to date in my context is related to memory leaks / handle leaks. I recommend you get a fresh pair of eyes to investigate your code.

What actually happens is that the image is disposed at a random point in the future, even if you've created it on the previous line of code. This may be because of a memory/handle leak (cleaning some out of my code appears to improve but not completely resolve this problem).

Because this error happens after the application has been in use for a while, sometimes using lots of memory, sometimes not, I feel the garbage collector doesn't obey the rules because of some special tweaks related to services and that is why Microsoft washes their hands of this problem.

http://blog.lavablast.com/post/2007/11/The-Mysterious-Parameter-Is-Not-Valid-Exception.aspx