Execution conflict between a SubVI and a while loop

Question

Hi,
I have wired the conditional terminal of a while loop with a boolean control. The same boolean control is responsible to terminate a SubVI (not inside the while loop) which also contains a while loop (I am using a reference to the control here). When I first use the boolean control, the SubVI is being terminated, but the while loop in the main VI is not. In order to terminate the main VI, I have to use the boolean control once more. In order to avoid that, I created a "status"-indicator within the SubVI, which is set to true once the SubVI is terminated, and wired that from outside the main VI's while loop to its conditional terminal. Of course, now the while loop does only execute once the subVI transmits the status value.
The thing is, I want both the while loop to execute before the status value is being transmitted (so, only the conditional terminal is supposed to wait for the value) and use the boolean control only once in order to terminate the VI.
Any ideas?

Answer 1

Ok.  I kind of expected to see this.
First of all, change the "Control: Mouse Down" event into "Control: Value Change".  DO NOT USE  A LOCAL VARIABLE!!!  Wire the result straight out to the termination terminal.  You want something like this:
Your writing to a local is a race condition.  The control was read before you wrote to it.  Therefore the loop was going an extra time around.
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