Control default value

[daro]

Hi to all.

How can I change the default value of a control while the program is running, I mean , I have a 4 as a default value of a numeric control, but I want that the user can change that value and save it, so the next time the program run, the control use the last saved value.

I just need to do that for that single control, so I don't like to use a init file, is there any property that can do that?

Thank you in advance.

[Karissap]

There is a property node to change the default value but it is only writable when the vi is in edit mode, you could just pass the value to a second vi that references it when the vi has finished running.

[Karissap]

Here is an example of calling a vi by it's reference and changing the default value of a control when it stops running.

http://forums.lavag.org/index.php?act=attach&type=post&id=6345

[daro]

Great, thank you for your help.

[Nyang]

QUOTE(Karissap @ Jul 13 2007, 07:52 AM)

Here is an example of calling a vi by it's reference and changing the default value of a control when it stops running.

http://forums.lavag.org/index.php?act=attach&type=post&id=6345''>http://forums.lavag.org/index.php?act=attach&type=post&id=6345'>http://forums.lavag.org/index.php?act=attach&type=post&id=6345

Would you like to tell me how to find the property node for default value?

Thanks in advance

[Karissap]

QUOTE(Nyang @ Jul 13 2007, 01:55 PM)

Would you like to tell me how to find the property node for default value?

Thanks in advance

That propery is private and can only be accessed by enabling VI scripting in LabVIEW 7.1 using the ini file (a lot harder to enable scripting in newer versions). See the http://forums.lavag.org/VI-Scripting-Readme-First-t1207.html' target="_blank">VI Scripting Readme for how to enable it.

[Yair]

What's the problem with using an INI file?

If you have a single control the code for handling this will be simple and you know that this will work all the time (including in an executable) and that you don't have to save the VI each time.

[Rolf Kalbermatter]

QUOTE(Karissap @ Jul 12 2007, 11:39 PM)

That propery is private and can only be accessed by enabling VI scripting in LabVIEW 7.1 using the ini file (a lot harder to enable scripting in newer versions). See the http://forums.lavag.org/VI-Scripting-Readme-First-t1207.html' target="_blank">VI Scripting Readme for how to enable it.

And it is likely to not work as desired in an executable.

Rolf Kalbermatter