In a script I’m working on I am looking to filter to all linked elements with a valid parameter value. In the Revit UI, the way I do this is by specifying two filters. Unfortunately one of them is not available as a node. “Parameter has value” AND “Parameter value != “““ (empty string) This will g…

You can also extract all the parameters and then remove or separate the parameters with empty values.

Hi @Alexander_Kaplan Have you tried the following [image]

@MSAwan what values are you placing in the “Value” input? for Not Equals, I could use a blank panel. But for equals, I dont want to match against a specific text, I want to catch any and all values that are input. In my usecase, I am looking to gather all elements for which a parameter has been se…

Following up so this thread has an answer. Yes, this is what I needed to do. I was hoping to avoid this since I had ~20k elements and only ~500 of them had values. Extracting the 19k blank values has a performance hit. I rebuilt the same code in Dynamo python and didn’t see much of a performance dif…

you also check the following example. here we also had empty values. [image] Element Parameter - List Mismatch Revit you can use Parameter filter for that [image]

Request for new Component or workaround - Has Value Rule

Rhino.Inside Revit

MSAwan ( Muhammad Saqlain Awan) October 23, 2025, 1:01pm 6

you also check the following example. here we also had empty values.

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Request for new Component or workaround - Has Value Rule

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