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Async Delegate question

Can I use Async delegates to do infinite polling in vb.net?

Nov 21 '05 #1
2 1171
I don't exactly understand what you mean. By "infinite polling", do you
mean sitting in a loop and polling indefinitely (maybe sleeping once in
a while), or polling once every X seconds for ever?

If it's the former, then yes, you can. Fire the polling method using an
async delegate to run it on a second thread.

If it's the latter, no, you can't directly - you'll need to use a
System.Threadin g.Timer to trigger the poll once every X seconds.

Regards,
-Adam.

Viet wrote:
Can I use Async delegates to do infinite polling in vb.net?

Nov 21 '05 #2
Actually, its the former: fire the polling method by sitting in a loop and
polling indefinitely. The code is I used is:
if objectIASyncRes ult.iscompleted = true then
'do something

but everytime I execute it, it executes once. Is there any code examples for
this?
THanks,
Viet

"Adam Goossens" <ad***********@ gmail.com> wrote in message
news:OK******** *****@TK2MSFTNG P15.phx.gbl...
I don't exactly understand what you mean. By "infinite polling", do you
mean sitting in a loop and polling indefinitely (maybe sleeping once in
a while), or polling once every X seconds for ever?

If it's the former, then yes, you can. Fire the polling method using an
async delegate to run it on a second thread.

If it's the latter, no, you can't directly - you'll need to use a
System.Threadin g.Timer to trigger the poll once every X seconds.

Regards,
-Adam.

Viet wrote:
Can I use Async delegates to do infinite polling in vb.net?

Nov 21 '05 #3

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