Issue with sorting Sheet Numbers: Dynamo string sort vs Revit natural sort

[nguyen.duy.quang.993]

Hi everyone,

I’m working on a graph to sort sheets by their Sheet Number, but I’ve run into a sorting logic discrepancy between Dynamo and Revit native schedules.

As you can see in the attached screenshot:

• In the Revit Schedule (right side): The sheets are sorted naturally (A.1, A.2, …, A.9, and then A.10).

• In Dynamo (left side): Using the standard List.SortByKey node, it performs a strict string sort, placing A.10 right after A.1, and pushing A.2 below it.

Does anyone know of a custom node, a specific package, or a Python snippet that can achieve “Natural Sorting” in Dynamo so the list order matches exactly how Revit handles it?

Thanks in advance for your help!

[bvs1982]

[nguyen.duy.quang.993]

The locale’s sort natural node works correctly; however, it returns a string value, causing an error for the set parameter node. Is there a way to sort correctly and return an elementer value?

[bvs1982]

Dictionaries can work.

[nguyen.duy.quang.993]

Thank you for your kind help; I have successfully completed the project. Here are images of my nodes.