How to abort subvi in subpanel?

[astroboy]

Hi is there anyone who knows how to abort and close the sub-vi inside the subpanel

while the main.vi  or sub-panel is still running and able to open the another sub-vi again?

[becktho]

Hi

I assume you have a sub-vi, which has a while-loop. Just stop this loop and close the front panel using an invoke node. If you insert the sub-vi into the subpanel, check if the front panel is open. If so, just insert and run it, otherwise open it first.

Hope this helps.

Thomas

[falkpl]

You should be able to insert a vi, run the vi with an invoke runVi node (use wait for completion = FALSE so the vi runs in its own thread) and if you need to stop the vi, call "abortVi" with the reference to the sub-panel's vi, this will stop the vi, then you can programmatically close it and insert a new vi.

[falkpl]

A better way to stop a vi then abort is to allow for some communication protocol like a custom event or a message queue to signal to shutdown this will allow for a safe abort  of the vi in the sub-panel but requires more planning so think if it is worth the work.

Paul.

[becktho]

It always depends on the situation, how you implement communication. But it's always better to know what's going on than just abort a vi.

[astroboy]

Hi. Here are 2 attached. They are simple. First I created one that increments the number throught out the loop inside the subpanel.till it is stopped by button outside the subpanel. . However, there are two problems that do not work right. One, the loop stops at 2 or 3 even the button is not pressed outside sunpanel. Maybe due to notifier communications. Two, vi inside the subpanel cannot be stopped and removed.

So how do I do about it. There are no good examples shipped with LV.

Clement

[astroboy]

Hi,  Becktho and Falkpl,

I manage to solve the problem All I have to do is create a another loop for send notification. So now it works.

Most important, is that the I must create send notification and wait for notification in each loop.

Thanks

Clement