Reusing Indicators in True and False Cases

[jumpingjack]

Hello,

I am using Labview version 8.0. I don't quite understand the flow of using the  Labview block diagram yet and still learning.

Attached is a very simple VI diagram. I am just trying to send a string from the "String to Send" box to the "Receive String" box when i click the "Send  String" button and would like to clear the "Receive String" box when i click  the button again.

The program will stop when the red button is pressed. I have a VI class that  will reinitialise the values at the start of the run. What i would like to know is how can I clear the "Receive String" indicator in the False case. Meaning if when the program is just started up the following is the steps i will take:

1)Enter text in "String to Send"
2)Click "Send String" button
3)Observe text in 1) is now in "Receive String"
4)Click  "Send String" button again
5)Want to observe that "Receive String" is empty.

The easiest method would be to use the VI class to reinitialise everything but
once i only want to empty or maybe enter another string into that 1 particular object.

[JB]

This is very easy. See attached example. Don't forget to insert a delay in the loop to avoid the loop using 100% of the CPU ressources by running as fast as possible.

[JB]

Yet a more optimized version, using 0% CPU ressources while waiting for user actions and showing the usage of events.

[jumpingjack]

Thanks very much for the examples

[mikeporter]

As JB's code so aptly demonstrates 90% of the time when you are thinking "user interface" you should be thinking "event driven".

Mike...