Event handler in later sequence frame is handling my event

Consider a case where you have a sequence with two frames. Each frame has an event handler. If you are in frame 0 processing events, do you think that the event handler in frame 1 should have any relevance? The attached vi demonstrates that it does. This seems like a bug to me or at least something to watch out for. I spent a half-day trying to figure this one out.

kc64 wrote:
I read the caveats and recommendations several times. I recognize that my example vi shows two event structures in one loop but, in my application , this is not the case. I don't see any clear instruction on that help page that would indicate that I have broken some rule of event structure use.
That's bothersome. I use sequences all the time and nobody has ever commented that my code is badly designed. I wonder why NI provides that function if it promotes poor code design. You did say "often" and not "always" so I have an out. :^)
Well, maybe they missed something in the caveats But using more than one Event Structure is not a good idea.
I just posted something to that effect this morning: http://forums.ni.com/ni/board/message?board.id=170&thread.id=337440
As for using a sequence structure (especially Stacked Sequences), I totally agree with Denis that it is poor design. Unfortunatley, NI cannot remove them from the palette due to compatibility with older versions. I would vote that they be removed ASAP.
However, it is your choice to follow other people's advice or not to follow it.
R

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How to handle user exit sequence

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one and state solution
go to debugger mode make breakponint on statement call fm.
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I am hoping there is a more elegant way to do this...
See the attached VI for a vastly-simplified program that typifies what I am trying to accomplish. Basically, I've got one button that I want available in multiple sequence frames. In this case, I have used an "Exit" button. When pressed, the program passes through any remaining sequence frames until it ends. The final frame "unclicks" the "Exit" button. This final frame is necessary because I had to set the mechanical action of the Exit button to "Switch When Released" because I used local variables in all sequence frames after the first one.
Is there a way I can accomplish the same functionalities of this program without using local variables and/or while setting the mechanical action of the "Exit" switch to "Latch When Released?" I am specifically looking for solutions which will work in multiple frames of a stacked sequence structure (I realized there are ways to turn the three lights on without using a stacked sequence structure, but I am not interested in doing so).
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Solved!
Go to Solution.
Attachments:
Stop Button Demo.vi ‏14 KB

hi dia,
So many discussion was finished regarding this multiple Event structure. In your code totally 3 event structures you are using. But in a program only one Event structure is enough to operate properly. Because in LabVIEW only one event queue is there in built. So if you use more than one event structure LabVIEW will got confused and it will get queued up, even though there is no state and it will be masked some time. That's why your code taking so much of time to exit. Some times it seems like hang...
Try this VI...
<<Kudos are welcome>>
ELECTRO SAM
For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.
- John 3:16
Attachments:
Event Handle.vi ‏11 KB

Sequence of firing of report events

Hi,
wat is the sequence of firing of report events.
Thanks,
Mohit.

hi
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ravish
plz dont forget to reward points if useful
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Are you another student who feels the need to post their "student ID" number as a part of the message? There is really no need to do that, it is meaningless to us.
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Event handler in later sequence frame is handling my event

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