the default item of Ring 1 is Sequence 1 and when I select Sequence 1 nothing happens

[Ngouda]

Hello guys,

On my VI when you select an item of Ring 1 the corresponding items of Ring 2 appear.
My problem is when you run the VI the default item of Ring 1 is Sequence 1 and when I select Sequence 1 nothing happens.
On the other hand, the two other sequences when selected are as I want them.
I don't understand why it doesn't recognize the selection of sequence 1.
However, when I select Sequence 2 or 3 and I come to select Sequence 1 again, everything works.

Do you have an idea what this is about please?

[PalanivelThiruvenkadam · Accepted solution]

By Default its Sequence 1 and when you select Sequence 1 without selecting other 2 No Value Change Occurs. So it wont work.

Also Instead of Using Multiple Property Node in each case you can use Property Node outside the csae.

You can also use New Value of Value Change Event Instead of Local variables whereever applicable

[MaSta · Accepted solution]

The main problem is that the event structure only reacts to value changes you do by clicking the mouse into the ring. When programmatically changing the value of the ring inside the while loop you cannot trigger the event. That's one of the illogical things in LabVIEW, because changing the value is changing the value, no matter how.

[crossrulz · Accepted solution]

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@MaSta wrote:

The main problem is that the event structure only reacts to value changes you do by clicking the mouse into the ring. When programmatically changing the value of the ring inside the while loop you cannot trigger the event. That's one of the illogical things in LabVIEW, because changing the value is changing the value, no matter how.

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There is a "Value (signaling)" property that you can write to that will trigger a value changed event.

[Ngouda]

Hi  @PalanivelThiruvenkadam, @MaSta, @crossrulz
I thank you all for your answers 🙂
It works now as I want it to.