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  • >> Go to dataminer.services

Add Exception on Parameter with empty value

Solved843 views8th August 2023Exceptions
1
Dario Sarkanovic [SLC] [DevOps Advocate]854 19th July 2023 0 Comments

Hello Dojo,

I have SNMP table that is polled based on timer. On StreamViewer I see that group that poll table is executed. Table has instance column and two another column for data. Column parameters has type: double.

Instance parameter gets value  from device but other columns are empty and has "Not Initialized." value. I want to add Exceptions on those empty parameters and set them to "N/A".

I can create QAction that will be triggered on table Id and then check if rows are empty and set values to those parameters to -1 and use that value in Exception tag on parameters to display "N/A". Adding new QAction only for this purpose is not what I want.

Can we add Exception tag on parameter to check if value is empty? Is there any other solution for this case?

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 8th August 2023

1 Answer

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Thomas Warnez [SLC] [DevOps Advocate]629 Posted 24th July 2023 1 Comment

Hi Dario,

You must first be sure if the value is getting triggered. With this I mean there is literally an empty value been set to the parameter. The reason I say this is that if this is true, you can have the following:

This only works if there is a value set to the parameter. An empty string could be set to a parameter. So check if this is happening.

If the value is never set, this will not work and you will need a QAction setting the exception value to the parameter.

Sam Stump [DevOps Advocate] Posted new comment 14th January 2024
Sam Stump [DevOps Advocate] commented 14th January 2024

How would we use a QAction to set the exception value when the value is never set?

Example when SNMP returns “NO SUCH OBJECT” in the Stream Viewer is the exception I am trying to catch

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