Get all room names from one plan view and change a parameter of each room | Revit API

Question

right now I am working on a project, which should get the roomnames from a plan view and compare each room name with a database. If the roomname if found in the database, the parameter in the room called "IS_IN_DATABASE" should be updated with "YES"

Unfortunately I have no Idea, how to get the roomnames from one plan view...

I found this post: https://forums.autodesk.com/t5/revit-api-forum/how-to-retrieve-rooms-filtered-by-level/td-p/6627076
but it does not work because I always get a exception:

viewId is not a view. Parameter name: viewId

As the post mentioned: `You need to make sure the active view is not the project browser nor schedule nor draft... it is preferable to be a plan view.` — Smartis has left SO again, May 09 '18 at 06:26

score 0 · Answer 1 · answered May 09 '18 at 08:41

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It would be easier to do if you provided some code, but does this work?

View activeView = doc.ActiveView;

List<Room> rooms = new FilteredElementCollector(doc, activeView.Id).OfClass(typeof(Room)).Cast<Room>().ToList();

To get only the names in a list you could use something like this:

List<string> rooms = new FilteredElementCollector(doc, activeView.Id).OfClass(typeof(Room)).Select(a => a.Name).ToList();

Put using Autodesk.Revit.DB.Architecture on top, otherwise it won't recognize rooms.

answered May 09 '18 at 08:41

Jan Buijs

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thank you, but how can I now set a new parameter to the room? – clem995 May 09 '18 at 11:34
do you know the name of the parameter? – Jan Buijs May 09 '18 at 14:47

score 0 · Accepted Answer · answered May 09 '18 at 15:26

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Already answered in the Revit API discussion forum thread on getting room names and changing parameter value.

It would be better if you raised separate questions for these two separate issues.

answered May 09 '18 at 15:26

Jeremy Tammik

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Get all room names from one plan view and change a parameter of each room | Revit API

2 Answers2