find and replace a single global variable

[pcs82]

Hello,

I have a GUI which needs to be replicated 10 times. the variables in the global file also needs to be replicated ten times. ex: if GUI1 is using global variables GUI1_TestMode, GUI1_Result etc,  GUI2 should use GUI2_TestMode, GUI2_Result and GUI3 should use GUI31_TestMode, GUI3_Result etc.  So, once I have saved GUI1 as GUI2, I need a way to select all GUI1_TestMode in GUI2 and replace it with with GUI2_TestMode.

I tried find and replace in the edit menu, but it finds all the global variables together. 

there are about 40 such global variables associated with each GUI and I dont think it will be sane to sit down, rename all of them in the global file, click on each variable and change them.  I really hope I dont have to do that.

I am using Labview 8.6

Thanks.

[GerdW]

Hi pcs,

instead of using 40 globals per GUI with upto 10 different GUIs you really should redesign your program.

I would suggest a FGV/AE handling those global data for all of those GUIs…

The quick & dirty way would be to use LabVIEW's VI linking scheme:

- Create your global VI with all needed variables. Create your "GUI" and connect it with that global VI.

- Now you copy your GUI to create a new one, this will still be linked to your "global VI".

- Then copy the global VI to create a new instance with a different name ("global2.vi") and ZIP (and remove) the original one.

- When you now open the global2.vi it will search for your orginal "global.vi". Then you simply direct it to use "global2.vi" instead…

- Repeat those steps for all other GUI-VIs…

As said before: QUICK & DIRTY!

[Yamaeda]

Change the global to a cluster and place it in an array, then you'll have an array of settings/info that's easily handled.

/Y

[GerdW]

Hi Yamaeda,

yes, easily handled - and a lot of race conditions as soon as several of those "GUIs" try to read and write their data at the same time…

[pcs82]

what is FGV/AE ? 

I have to actually sit and rename them since they are signals to a PLC and needs to be read back and processed, so I am doing it anyway. 

Thanks!!

[crossrulz]

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@pcs82 wrote:

what is FGV/AE ?

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Functional Globals Variable and Action Engine (I highly recommend following that link and giving the nugget a good read).

[Yamaeda]

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@GerdW wrote:

Hi Yamaeda,

yes, easily handled - and a lot of race conditions as soon as several of those "GUIs" try to read and write their data at the same time…

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If capsuled in an AE incl. a Update function which does the reading and writing internally it should help some, but you can always create races. 🙂

/Y