Available in the OPCDA.NET Professional Edition only.
This event handler is called when an error occurs and the user did not specify a completion handler in the request. It is also called when a request handling timeout occurs. In this case it's called even with a user completion handler specified. The request completion handler will be called when the request handling finally terminates. This may be after a much longer time limit.
Syntax
Requirements
Target Platforms: Windows 7/8/10, Windows Server 2003/2008/2012/2016, .NET 4.x
See Also
