Events&threads

[joe]

Hi,

I have a dedicated worker thread for receiving bytes from
the serial port.
Upon receiving it fires an event RxData.

The main application thread has an event handler for
RxData. When I receive data from the port I want to create
a button and put it on the form. But I get exception:

"Controls created on one thread cannot be parented to a
control on a different thread"

But the event handler is in the main thread which is also
the GUI thread!
Does that mean that even if the event handler is in one
thread, it is considered by .NET as being in the thread
which fires the event?

Thank you
Joe

 

[Sunil TG]

As you might think, the event handler thread will not be
the application main thread.
What you can do to solve the issue is, put a hidden button
in your main form, and from the event handler, make it
visible.

HTH
Sunil

 

[Sankalp]

Hi Joe,

The following link may be of help.
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnforms/html/winforms06112002.asp
Check Part 2 and Part 3 of the article too!

Hope it helps!

Sankalp

 

[joe]

-----Original Message-----

Hi Joe,

The following link may be of help.
http://msdn.microsoft.com/library/default.asp? url=/library/en-us/dnforms/html/winforms06112002.asp
Check Part 2 and Part 3 of the article too!

Hope it helps!

Sankalp

Thanks for the help. I actually bought Chriss Sells's book
and it has this very example and explaining how to do deal
with UI from different threads

 

[Rajesh.V]

Sankalp,

Can you tell me which book is that.
tx

Thanks for the help. I actually bought Chriss Sells's book
and it has this very example and explaining how to do deal
with UI from different threads