NETWORKCOMMS Network Program Development Note (i): A secure triggering event in a multithreaded environment

Triggering an event in a multi-thread may throw an exception with a null reference, a problem that is discussed online.

The NETWORKCOMMS communication framework itself has little use of events, so there is no such problem in the core communication framework.

On the internet to check a lot of information, such as the following:

The solution we use:

 Public Static class Extensions    {        publicstaticvoid raise<t> (Thisobjectwhere  T:eventargs        {            ifnull)                handler (sender, args);        }    } 

Define the event as follows:

// event Arguments    that contain file information  Public class Fileeventargs:eventargs    {        public  Fileeventargs (filedetail  fileInfo)        {            = fileInfo;        }          publicgetset;}    }

 Public Event Eventhandler<fileeventargs> Newdoubleclick;

Trigger Event Statement:

Newdoubleclick.raise (This,new Fileeventargs. FileInfo));

Reference articles

Http://stackoverflow.com/questions/786383/c-sharp-events-and-thread-safety
Http://stackoverflow.com/questions/840715/the-proper-way-of-raising-events-in-the-net-framework
http://stackoverflow.com/questions/9033/hidden-features-of-c/9282#9282
Http://stackoverflow.com/questions/840715/the-proper-way-of-raising-events-in-the-net-framework
Http://stackoverflow.com/questions/231525/raising-c-sharp-events-with-an-extension-method-is-it-bad
Http://blogs.msdn.com/b/ericlippert/archive/2009/04/29/events-and-races.aspx
Http://stackoverflow.com/questions/786383/c-sharp-events-and-thread-safety
http://codeblog.jonskeet.uk/2015/01/30/clean-event-handlers-invocation-with-c-6/
http://visualstudio.uservoice.com/forums/121579-visual-studio/suggestions/3796170- Add-raise-extension-method-for-eventhandler-and

Www.cnblogs.com/networkcomms

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NETWORKCOMMS Network Program Development Note (i): A secure triggering event in a multithreaded environment