How to get topoTypeId in order to create Toposolid

[vaidas]

Hi How to get topoTypeId in order to create Toposolid using 

public static Toposolid Create(
	Document document,
	IList<CurveLoop> profiles,
	ElementId topoTypeId,
	ElementId levelId
)

what to pass to the third parameter topoTypeId

[jeremy_tammik · Accepted solution]

I would suggest retrieving all database ElementType objects with the category Toposolid and using one of those. That is the most common method to populate such a type id argument.

[vaidas]

but if i have empty doc? 

[jeremy_tammik]

If your document lacks a Toposolid type, it may be impossible to create a new Toposolid. Try it out manually in the UI and see whether it works. However, I doubt that it is possible to remove all Toposolid types from a Revit 2024 RVT project. I would assume that they are built-in, hardwired.

[vaidas]

yes sorry, I misunderstood the first answer. You are totally right, thanks!