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Messages 1 to 8 of 8 total |
For Iteration Backwards |
Sat, Jul 7 2012 1:34 PM | Permanent Link |
Walter Matte Tactical Business Corporation | July 5/20112 Build
For X := 1 to 5 do Begin Application.Desktop.ShowMessage(inttostr(X)); End; ShowMessage 5 4 3 2 1 iterates 5 to 1 - expected 1 to 5 Walter |
Sun, Jul 8 2012 2:53 AM | Permanent Link |
Roy Lambert NLH Associates Team Elevate | Walter
If its anything like Delphi my guess is that this is due to compiler optimisation. If you actually do something with the counter (eg set up an array and use it as an index into it) then you'll get the right answer. Roy Lambert |
Mon, Jul 9 2012 4:14 AM | Permanent Link |
Matthew Jones | I reckon that is because you are seeing the last message box first, then you click
that to reveal the 4th, etc. Remember that EWB is all async, so there is nothing to stop the loop continuing after showing the first message box. /Matthew Jones/ |
Mon, Jul 9 2012 4:29 AM | Permanent Link |
Roy Lambert NLH Associates Team Elevate | Matthew
>EWB is all async, Interesting, I didn't know that still trying to sort out stuff on my day-to-day app before I can start playing with EWB Roy |
Mon, Jul 9 2012 5:24 AM | Permanent Link |
Matthew Jones | Well, I guess it isn't all async, but UI will be. It's not about EWB being async,
but the platform it is operating within - the browser. /Matthew Jones/ |
Mon, Jul 9 2012 7:15 AM | Permanent Link |
Matthew Jones | And just to confirm, having done this today, it is indeed async display. You may
want to look at Application.Desktop.MessageDlg which has a callback when complete, which allows you to go to the next step once the user has confirmed. You'd need a state-machine though, not a for-loop (that is, keep a form property that is the current index, and on confirmation, increment it to move to the next one). /Matthew Jones/ |
Mon, Jul 9 2012 7:16 AM | Permanent Link |
Walter Matte Tactical Business Corporation | Matthew:
Thanks... async... gotta get my backward thinking straightened out! Walter |
Mon, Jul 9 2012 9:16 AM | Permanent Link |
Rick | <Walter Matte> wrote in message
news:C11CB9A9-585B-4E64-8333-F0D6E5ECAC06@news.elevatesoft.com... > For X := 1 to 5 do > Begin > Application.Desktop.ShowMessage(inttostr(X)); > End; > > ShowMessage > 5 > 4 > 3 > 2 > 1 > > iterates 5 to 1 - expected 1 to 5 > > Hi Walter. As pointed out by Matthew it's the way the browser is handling the modal aspect of ShowMessage. Try using window.alert(IntToStr((X)); instead. This calls the internal javascript "alert" function which will show the messages modally as expected. -- Rick |
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