How to select element by using SetElementIds method

[SHIBUJOSE]

Can anybody share your knowledge how to select element by using SetElementIds methods.

[Alban_de_Chasteigner]

Hi @SHIBUJOSE,

See this post :

Selecting elements through Dynamo

Hi Mustapha, You need to import the System collection in RevitServices to use ICollection (ICollection) You will find an example below : clr.AddReference('RevitNodes') import Revit clr.ImportExtensions(Revit.Elements) clr.AddReference('RevitServices') import RevitServices from RevitServices.Persistence import DocumentManager from System.Collections.Generic import * clr.AddReference('RevitAPI') import Autodesk from Autodesk.Revit.DB import * elements = UnwrapElement(IN[0]) select = [] for …

[SHIBUJOSE]

but in and out are same values, correct?

[Alban_de_Chasteigner]

You can replace the output (selected elements) by a message : “Success” if you want.

[shibujoseukken]

when I try the below code, I got a null out put. what may the reason

elements = UnwrapElement(IN[0])
select =

for i in elements:
select.append(i.Id)
Icollection = List [ElementId] (select)
o = DocumentManager.Instance.CurrentUIApplication.ActiveUIDocument.Selection.SetElementIds(Icollection)

OUT = o

[Alban_de_Chasteigner]

I do not see where you define the output “s”.

[shibujoseukken]

sorry out is o not s
out put is null

[Alban_de_Chasteigner]

This is normal behavior.
The output can only be the input or a message.

[shibujoseukken]

Actually what is Icollection. I search a definition for that term. But I couldn’t. can you help me

[Alban_de_Chasteigner]

ICollection<T> Interface (System.Collections.Generic)

[john_pierson]

Springnodes already has an implementation of this.