How can I change the value of a Front Panel Control?

[dbaechtel]

On the Front Panel I am making a complex control that consists of a Slider Control and a Numerical Input Control. Both Controls display the same information and either can be used for Input. When one changes value I want the other control to display the same value.

How can I change the value of a Front Pane Control when another Control changes value? I know how to use an Event structure to detect the value changed, but I don't know how to force a Front Panel Control to change its value in the Block Diagram.

[RavensFan]

You can write to a local variable of the control, or a Value Property Node of the control.

These are very basic questions you are asking.  Have you taken any LabVIEW tutorials?
LabVIEW Introduction Course - Three Hours
LabVIEW Introduction Course - Six Hours

[dbaechtel]

I have taken many LabVIEW turorials and none of this was mentioned.

Also this information does not appear in the LabVIEW Help under Numeriacal controls as far as I can tell.

[altenbach]

Why don't you delete your digital control, then right-click the slider and select "visible items...digital display" or similar. No code needed! 🙂

[JackDunaway · Accepted solution]

Why don't you use a digital display on the slider, and no code is even necessary:

***EDIT: Yeah, what he said. ***

[RavensFan]

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@dbaechtel wrote:

I have taken many LabVIEW turorials and none of this was mentioned.

Also this information does not appear in the LabVIEW Help under Numerical controls as far as I can tell.

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Honestly, I've never taken the tutorials because I paid for classroom LabVIEW training in Basic 1 & 2 and Intermediate 1 & 2, as well as some webcast advanced courses.

But someone can correct me if I'm wrong, but I'm sure the tutorials somewhere have to mention local variables and property nodes.

[smercurio_fc]

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@Ravens Fan wrote:

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@dbaechtel wrote:

I have taken many LabVIEW turorials and none of this was mentioned.

Also this information does not appear in the LabVIEW Help under Numerical controls as far as I can tell.

---

Honestly, I've never taken the tutorials because I paid for classroom LabVIEW training in Basic 1 & 2 and Intermediate 1 & 2, as well as some webcast advanced courses.

But someone can correct me if I'm wrong, but I'm sure the tutorials somewhere have to mention local variables and property nodes.

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Local variable are. They're in the 6 hour course that you linked to. Didn't see anything about property nodes, though.

[altenbach]

(Sorry, I was posting earlier via phone, so I could not show a picture like jack. :))

Anyway, a "No Code" solution is much better than convoluted gymnastics with events and local variables.

The digital display can easily be customized and the possibilities are endless. For an extreme example, have a look at this old VI (posted here). 😄