Subvi does not update value of a control in a program

[nevil]

I created a sub vi to modify functionality of a control.

The increment and decrement step in a control depends on where the cursor is when you use the up and down button. But I am trying to make the program change the values by seeing the lowest decimal, like if you enter 1.23 you increase as 1.24, 1.25 and in case of 1.234 it should be 1.1235, 1.236 and so on. LV does it in such a manner if you have cursor placed in the control, but once you have it out it goes back to predefined change steps.
When I run my vi as a stand alone it works fine. When I use it in a program, the contorl does not fuction the way it does like it does when run as a stand alone. It does not update the value on the main vi.

If you run intelli.vi with1.234 it follows the pattern I specified of 1.235, 1.236
But when you use it in main.vi 1.234 changes as 1.334, 1.434 and so on.

[knapkerd]

The reason is that your numeric in the subVI and the numeric in the main VI are different and therfore have different reference numbers despite having the same name.  There are 2 things I could think of to solve this:

1. pass the main VI numeric refnum into the subVI

2. pass the incriment value out of the subVI and wire it to a property node that is in the main VI.

Hope that helps.

--Robert

Message Edited by knapkerd on 07-02-2008 09:05 AM

[altenbach]

Try this:

[nevil]

Thanks for the reply Robert.
I can do it now!
I used the second option you gave. I am not sure how to do the first one
It would help if you can give me some instruction on how to go about doing it

[nevil]

This great!
I love these forums.

Thanks for the replies all. I can do it now!