What exception is thrown if a web service I'm using times out?
c#, exception, system.net.webexception, web-services
Solution
This kind of depends on which "version" of web services you are using.
Using WCF, you will actually get a TimeoutException. You should generally also handle CommunicationException if you are attempting to handle timeouts. Sometimes I've also seen FaultException, although that technically shouldn't happen (but it does anyway once in a while). `FaultException` is a descendant of `CommunicationException` so you don't need to handle it separately, it's just useful to know that it might occur.
In ASMX, you will usually get a wrapped SoapException for which you need to check the `InnerException` property to see what really went wrong.
Using WSE, you'll see yet another exception, ResponseProcessingException, for which again you must check the `InnerException` for details.
Problem
I'm calling a .NET 2.0 web service within my existing .NET 2.0 web service. I would like to know what exception is thrown from the web method if a timeout happens. I have set the web service timeout to some lower value than the default 90 seconds and I want to add business logic if timeout happens. Is `[System.Net.WebException][1]` the exception I should be looking at?