Timer and Async events

[Jorge Sousa]

Hey George

It's time to you submit that Intraweb bug in EMBT Forums, since they are now stable

[Jorge Sousa]

Hey George

It's time to you submit that Intraweb bug in EMBT Forums, since they are now stable

[George]

Hello

Its already there, and Alexandre said that it's not a bug.
(as i think, it's architectural issue, since IW is pretty old and probably not so optimized (in some parts) for ajax usage).

I posted here conclusion and approach to use timers with frames when full submit is not an option.

[Jorge Sousa]

Hi

If it's not a bug why it works on an IWForm and not in a Frame?

[George]

Hi
If it's not a bug why it works on an IWForm and not in a Frame?

Because form (with all controls that placed inside) rendered without async events, so when webapp starts (opened main app form), timers already initialized.
When i create frame at runtime (with timer component inside), and use render region async to get frame visual components, timer is still not rendered (if i understand Alexandre correctly). Only full submit can render timers at runtime.
That can explain why onasynctimer event not works. But why not works server side ontimer event from frame - i don't know.

[mjq]

Hello George!

All timer objects should be placed inside main form (i use only one form).
Each frame can contain event handler for timer as usual, all what required is to assign handler to corresponding timer when frame is created and start timer, then stop timer when frame is destroy.

I reached same conclusion before I found this thread.

BTW, is there a way to stop IWTimer using async events?

Since I couldn't find proper way, I tried to use sync event (Ajax:=False).
But this solution contains some troubles
(e.g. showing dialogs by using same sync event)...

[George]

BTW, is there a way to stop IWTimer using async events?

I never tried this, and this not works. OMG! What a stupid situation.
Honestly, i want use server side timers. I not understand why timer should be placed inside html and work via javascript and call server side async timer handler when i have server side code that should be executed periodically. Really not understand.
And now you told that i even can't stop timer via button with async click.

BUT, if i add variable "StopThisDamnTimer:boolean" and inside button write:
delphi code

StopThisDamnTimer := True

And timer code will contain this:
delphi code

if StopThisDamnTimer then
  begin
    timer.Enabled := false;
    exit;
  end

Timer will stop.

CG, can you make a little present for us? - normal timer realization..
That will work on server side without any JS.

[mjq]

I think that it should be realized.
The timer which can be stopped by async events.

It's I guess difficult to realize, but...

[Jorge Sousa]

Hi

When you say Timer, do you mean the TTimer ?

[mjq]

Sorry. The answer is NO.

I just thought I wish there is perfect 'IWTimer' which can be stopped by async events.

It's a mere wish.
But many pending problems would be solved if there is it.