From any running subvi('s), read controls and choose the ones you want to save to file

Hi all,
I now want to read controls from any running subvi('s) and save the data into a single file. I'm using subpanel to display the running subvi and use control reference to collect all the string-typed control and save the data to a single file. While that's cheating and ugly, because the host vi usually doesn't know what controls will be there in the subvi('s).
I'm wondering if there is a way to dynamically read controls from any running subvi and display all the avalible controls depends on what subvi is running, and let the user decide which data are to be saved. I attached the vi I have now, please give any comment and I thank you very much in advanced.
-chen
Attachments:
logger folder.zip ‏86 KB

Hi thitchen,
without looking at your code:
with the VI reference you can get references of all controls on the VI's frontpanel. With that reference array you can collect all string controls in that subVI. The you should display a list to the user with the names/contents of those string controls so she/he may select which ones to save...
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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