Element.SetParameterByName error!

Revit
1

hello,

I have a graph where it gets all the workset names from certain element parameters. Then it finds all the names that are incorrect and change to a correct version by using Element.SetParameterByName.

I have a same graph for ‘Grid’ parameters but for some reason, this graph for ‘Reference Plane / Scope box’ is not working with this error.

What is the reason for this error?

Thanks!

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2

Hi @mrkpkimEMSRM ,

Your Element.SetParameterByName nodes errors on “the parameter is read-only”.
Are you sure the parameters you are trying to change are changeable?

3

@mrkpkimEMSRM If you are trying to change the workset of elements, try this:

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1 Like
4

Thanks !

5

hmm they are definitely changable… is that the only cause of the error?

6

Without seeing what elements you’re trying to change it’s hard to say. You likely have references, grouped elements, or something else that would make the individual element read-only.

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