Update a 2014 solution to 2016...cant solve the error

[Johan_Ekstrom]

Hey guys

A bit new to Revit API but i've got a working 2014-version which i am tryin to upgrade to 2016.

The updated parts are were the old code is changed to comment. Took a while to figure out the SelElementSet part... but when I update the two rows of code which are obsolete, I get a new error regarding the Insert. 

If i remove the new code and reset the old (In comment) the Insert part is fine but the SelElementSet is errored. 

How do i solve this...?

Any ideas, anythin obvious i am missing?

[Anonymous · Accepted solution]

Hey! Do you want to Insert the Id of the Selected Element like this ?

ICollection<ElementId> selElements = uiDoc.Selection.GetElementIds();

                foreach (Room r in new FilteredElementCollector(_doc, _doc.ActiveView.Id).OfCategory(BuiltInCategory.OST_Rooms))
                {
                    try
                    {
                        if (str != "" && str2 == "" && str3 == "")
                        {
                            if (r.LookupParameter("Number").AsString().ToLower().Contains(str.ToLower()))
                            {
                                
                                    selElements.Add(r.Id);
                                
                            }

[Johan_Ekstrom]

You are a genius!

I was picking in the Add-part instead of Insert but i didn't figure out the ID part. 

Thank you for your help, very kind of you. Now the application runs fine 🙂

[rvtquestions]

Hi @Johan_Ekstrom & @Anonymous

How would you edit the portion of code to work from:

Obtaining Element IDs:

 ICollection<ElementId> selElements = uiDoc.Selection.GetElementIds();

to prompting the user via rectangle?

uiDoc.Selection.PickElementsByRectangle

replacing the line with that results in an error. Any thoughts? Thank you!