Property Node & Array

[Minikisscool]

Hi,

I have a simple problem.

On my Front Panel, I have a 2D Array.
I can right click and Data Operation > Empty Data to clear the array.

I want to do this in my initialisation.

If I do Property Node or Local Variable with an empty array as input for initialisation of my program, it don"t works.
So, are they any possibility to have a Property Node > Data Operation > empry Array.

In advance, thanks for your help

[Sam_Sharp]

Just write an empty array constant to a local variable or use the value property node - it works. If it isn't working for you, can post an example VI or screenshot showing where you are having a problem?

[Minikisscool]

Please find, my test vi (2014 version)

If you play the vi 1 time, there is no problem, but if you do more, the 3 arrays are not init. (see size of the final array)

Thanks

[Sam_Sharp]

Can you save for LV2013 or post a screenshot - I don't have LV2014 installed.

It sounds like you might have an uninitialised shift register? An uninitialised shift register will use/remember the value from the previous iteration.

Either that or you have some sort of race condition where you are writing to the array before your 'clear' has actually run.

[Minikisscool]

This is the version for 2013

[GerdW · Accepted solution]

Hi Mini,

in your init frame you write empty arrays to three array controls.

When I test your VI it works as expected: all three arrays are deleted/cleared...

What else do you need?

But as said before: you use two uninitialized shift registers. It would really help to initialize them - using the very same empty array constants!

[Minikisscool]

The problem was the  two uninitialized shift registers.
Error of novice...    

Manay thanks for the help