Case structure-execute just once

[Copperwhite]

Hi
Basic question: If I wish the code in a case structure to execute just once upon the click of a boolean control how do I achieve this efficiently? At present I have been setting a local variable of the Boolean control to False from within the Case structure,.. and this seems to work but I think it is clumsy and I am sure there is a better way to do this!
Thanks,
Robert

[chilly_charly]

Simply change the mechanical behaviour of your boolean control (right click on the control -> "Mechanical action") and choose "latch when released".

[Ben]

Yes, this will work if there is no need to read the boolean in question elsewhere in the code.

Otherwise, the technique of setting to boolean false is valid.

Ben

[chilly_charly]

Hi Ben !
I think that this would probably create a race condition. May be a Notifier could do it ?

[Ben]

"...to False from within the Case structure"

I read this as the case structure that is driven by the boolean. Data flow says boolean will be read first...

But maybe I mis-read.

Ben