global variables odd behaviour in projects

[JÞB]

Tim is getting to the point regarding the reason for the behavior you are seeing.  The LabVIEW help file has some good discussions about "Application instances"  What they are and how to identify what AI the vi you are dealing with is open in. 

Hint: look at the left of the bottom boarder of the panel.  see that Application instance NAME?  Right click that name---- what can you do if the vi might be in multiple app instances?

Make an edit to a vi that is open in multiple app instances-  What is with those green arrows next to the run arrow?

Again: The NI LabVIEW development team gave you some pretty powerful and cool tools to work with... if you take the time to learn about them

[Ranjeet_Singh]

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@jcarmody wrote:

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@Ranjeet_Singh wrote:

Although didnt read the question but I also faced same problem earlier. Replace global with local. This solved mine

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Although I didn't read your response, I'm sure you're wrong.

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Untill and unless you haven't seen dont judge it. I had similar problem 2 yrs back and I did this and till now I have implemented this on more than 100 PC and 20 projects and works great.

[Ranjeet_Singh]

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@LV_Pro wrote:

A local variable is called "local" because its scope is local to the vi that it is in, and it is directly connected to a control/indicator in that vi. It won't work with sub-vi's or more importantly, vi's running in parallel to the vi they exist in.

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In my case only one VI will be active in project hence I was using main VI to update the local variable. later before calling any subVI I used to pass this value to all this subVIs. 

I havent seen what he has done and didnt read his post too. If he is using same case then this is best way to avoid GV.

What he can do main VI where local variable is updated. In that main VI all the subVI will be passed and to all of them in and out will be local variable. Once any subVI will update the LV all will be updated.

[Neos]

as for as i know application instances correspond to a project ( All VIs open outside a project belong to main application instances )

and global variable cant work across application instances.( so give default value )

[Intaris]

Ranjeet, please stop supplying "answers" to posts you openly claim you have not had the courtesy to read. It is very counterproductive.

[Ranjeet_Singh]

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@Intaris wrote:
Ranjeet, please stop supplying "answers" to posts you openly claim you have not had the courtesy to read. It is very counterproductive.

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Thanks for the suggestion but I am giving answer which is very much relevant to the question. I know its not a good thing but you see I am very busy with my project and hence sometimes time is an issue. But I will keep this is mind in future

[Intaris]

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@Ranjeet_Singh wrote:

Thanks for the suggestion but I am giving answer which is very much relevant to the question. I know its not a good thing but you see I am very busy with my project and hence sometimes time is an issue. But I will keep this is mind in future

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How do you know it's relevant if you haven't read the original post?

[Ranjeet_Singh]

Thats what subject does. I had same problem in my project long back

[Intaris]

[Neos]

Thats what subject does. I had same problem in my project long back

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that's kind of odd behaviour 

2 projects 1 long back , 1 recent and communicating through global thinking.................

in between

p.desai did you resolved this problem