How to get the number of vision clients to appear from a perspective

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Hi.

Picture "1" shows the number of vision clients.

I would like to express this quantity from a perspective.

For your information

https://docs.inductiveautomation.com/display/DOC81/System+Tags

It's not on this site.

Please tell me how I can display the quantity.

2

Hard to believe that [System]Gateway/Sessions/SessionCount doesn't exist.

But, it can be done through scripting.

https://docs.inductiveautomation.com/display/DOC81/system.util.getSessionInfo

4

I did it in the way you told me

I'd like to extract the yellow part of picture number 1 as a quantity, so please tell me how to do it.

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5

something along the lines of:

sessionInfo = system.util.getSessionInfo()
clientCount = len([x for x in sessionInfo if not x['isDesigner']])
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The value is null.

8

You need to return the result

Change it to

sessionInfo = system.util.getSessionInfo()
return len([x for x in sessionInfo if not x['isDesigner']])
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10

It was solved by doing it the way you told me.

Why did you put the "x" in front of "for" in the method

"return len([x for x in session Info if not x ['isDesigner'])" ?

11

This is an example of list comprehension. The x is merely a generic variable name.

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