ObjectDisposedException

Question

Hello everyone, Any general rules/practices to avoid "ObjectDisposedException"-- System.ObjectDisposedException: Cannot access a disposed object? thanks in advance, George

George George · Answer

Thanks Dipal, Is it possible to determine which object is Disposed and when it is Disposed? I only catch the exception, but no idea which object is disposed? Could I get information of which object is disposed from the exception information or some other ways to detect which object is disposed? regards, George

Dipal Choksi · Answer

OK - makes sense if you get the error when you disconnect from the client in the middle.. In that case, catching the exception would definitely be required.

George George · Answer

I get the exception from server side when call End method almost every time when I disconnect in the middle from client. Any ideas? regards, George

Dipal Choksi · Answer

I am curious - are you getting the exception every time the code executes or does it happen when the item you are trying to access has timed out/closed the connection etc?

George George · Answer

Thanks Dipal, 1. I have checked that the exception is from EndGetContext method of HttpListener class, when will it throw ObjectDisposedException? 2. I find the EndGetContext method can throw ObjectDisposedException. So, my solution is to catch it, is it the correct solution? http://msdn.microsoft.com/en-us/library/system.net.httplistener.endgetcontext(VS.85).aspx regards, George

Dipal Choksi · Answer

Try to avoid situations where disposed objects are accessed.. If possible, check for the existence/validity of an object before accessing it... In some cases, adequate testing may help..