Removing the assignment of the categories to the project / shared parameters

[shweta.deshpande]

Hello,
We want to perform the operation of removing the association of the categories with the project / shared parameters.
This can be done manually by checking or unchecking the categories.Please refer screenshot for the same.

We need to do it via API.
Is there any Revit API for the same?
Please let us know.

[jeremy_tammik]

I asked the development team for you.

[jeremy_tammik]

I think they understood your question better than I did. They reply:

All of the assignments are controlled through the Binding Map,  Document.ParameterBindings:

https://www.revitapidocs.com/2022/ce28ad7d-30b7-29d9-8f81-c75aebc03581.htm

You would find the entry for your particular parameter, get the Binding, modify the assigned Categories, and then ReInsert the modified binding.

It might be possible to also delete the parameter completely from a document by finding the corresponding ParameterElement and deleting it.    The id of that element is in the InternalDefinition for the parameter.