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Hi all,
sorry for my beginner question.
How can I change a form property from a thread (I don't think primary
application thread, but the instance of Thread class)? If I do it i get
an exception InvalidOperationException - Cross-thread
operation not valid: Control 'lblStatusGame' accessed from a thread
other than the thread it was created on.
--
Best regards,

Jakub Cermak
ICQ 159971304
http://cermi.wz.cz
Nov 17 '05 #1
4 3329
Jakub Cermak <ja******@centrum.cz> wrote:
sorry for my beginner question.
How can I change a form property from a thread (I don't think primary
application thread, but the instance of Thread class)? If I do it i get
an exception InvalidOperationException - Cross-thread
operation not valid: Control 'lblStatusGame' accessed from a thread
other than the thread it was created on.


You can't - you need to use Control.Invoke or Control.BeginInvoke.

See http://www.pobox.com/~skeet/csharp/t...winforms.shtml

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Nov 17 '05 #2
Jakub Cermak <ja******@centrum.cz> wrote:
sorry for my beginner question.
How can I change a form property from a thread (I don't think primary
application thread, but the instance of Thread class)? If I do it i get
an exception InvalidOperationException - Cross-thread
operation not valid: Control 'lblStatusGame' accessed from a thread
other than the thread it was created on.


You can't - you need to use Control.Invoke or Control.BeginInvoke.

See http://www.pobox.com/~skeet/csharp/t...winforms.shtml

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too
Nov 17 '05 #3
Hi Jakub,

All operations on forms and controls must be done on the main (UI) thread.
If you need to do them from other threads, use the Control.InvokeRequired
and Control.Invoke (see MSDN docs on these for detailed information).

--
Sincerely,
Dmytro Lapshyn [Visual Developer - Visual C# MVP]
"Jakub Cermak" <ja******@centrum.cz> wrote in message
news:u3**************@TK2MSFTNGP09.phx.gbl...
Hi all,
sorry for my beginner question.
How can I change a form property from a thread (I don't think primary
application thread, but the instance of Thread class)? If I do it i get an
exception InvalidOperationException - Cross-thread
operation not valid: Control 'lblStatusGame' accessed from a thread
other than the thread it was created on.
--
Best regards,

Jakub Cermak
ICQ 159971304
http://cermi.wz.cz


Nov 17 '05 #4
Hi Jakub,

All operations on forms and controls must be done on the main (UI) thread.
If you need to do them from other threads, use the Control.InvokeRequired
and Control.Invoke (see MSDN docs on these for detailed information).

--
Sincerely,
Dmytro Lapshyn [Visual Developer - Visual C# MVP]
"Jakub Cermak" <ja******@centrum.cz> wrote in message
news:u3**************@TK2MSFTNGP09.phx.gbl...
Hi all,
sorry for my beginner question.
How can I change a form property from a thread (I don't think primary
application thread, but the instance of Thread class)? If I do it i get an
exception InvalidOperationException - Cross-thread
operation not valid: Control 'lblStatusGame' accessed from a thread
other than the thread it was created on.
--
Best regards,

Jakub Cermak
ICQ 159971304
http://cermi.wz.cz


Nov 17 '05 #5

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