.NET EVents & Threading

[Guest]

Hi all


When .NET fires and event, does the event handler execute under a new
thread, or does it execute under the primary application thread?

Basically if I have events firing, do the event handlers themselves need to
spawn need threads, or can I safely assume the event handler is already
running under a new thread?

Thanks!

 

[Armin Zingler]

Hi all


When .NET fires and event, does the event handler execute under a
new thread, or does it execute under the primary application thread?

The event handler runs in the same thread as the code that raises the event.
No thread is created. The event handler is just a function called.

Basically if I have events firing, do the event handlers themselves
need to spawn need threads, or can I safely assume the event handler
is already running under a new thread?

If you want to run something in a new thread each time the event handler is
called, you must start the thread on you own.


Armin

 

[Guest]

The event handler runs in the same thread as the code that raises the
event. No thread is created. The event handler is just a function
called.


If you want to run something in a new thread each time the event
handler is called, you must start the thread on you own.

Thank you - That clears it up

 

[Tom Shelton]

The event handler runs in the same thread as the code that raises the event.
No thread is created. The event handler is just a function called.


If you want to run something in a new thread each time the event handler is
called, you must start the thread on you own.

Armin

Or run the delegate asycronously using BeginInvoke - in that case, the
method will be called on a thread from the thread pool.

 

[Guest]

Or run the delegate asycronously using BeginInvoke - in that case, the
method will be called on a thread from the thread pool.

If I do so, I'll have to call EndInvoke correct?

I'm using Threadpool.QueueUserWorkItem to process each call in it's own
thread.