Hide Table of Contents

Get Component Name From Selected Entity Example (C#)

This example shows how to get the name of a component to possibly use with a future call to IModelDocExtension::SelectByID2, when selectively opening the assembly document and specific components using ISldWorks::OpenDoc7 and IDocumentSpecification, etc. This example also shows how to get and set a component reference.

// --------------------------------------------------------------------------

// Preconditions:

// 1. An assembly document, with components, is open and active.

// 2. An entity (face, edge, vertex, or loop) on any component is selected.


// Postconditions: A component reference is added to the component to which

// the entity belongs.


// --------------------------------------------------------------------------

using SolidWorks.Interop.sldworks;

using SolidWorks.Interop.swconst;

using System;

using System.Diagnostics;

namespace GetSelectByIDStringComponent_CSharp.csproj


    partial class SolidWorksMacro


        public void Main()


            ModelDoc2 swModel = default(ModelDoc2);

            SelectionMgr swSelectionMgr = default(SelectionMgr);

            Entity swEntity = default(Entity);

            Component2 swComponent = default(Component2);

            swModel = (ModelDoc2)swApp.ActiveDoc;

            // Get the selected entity (i.e., face, edge, vertex, or loop)

            // and get the name of its component

            swSelectionMgr = (SelectionMgr)swModel.SelectionManager;

            swEntity = (Entity)swSelectionMgr.GetSelectedObject6(1, -1);

            swComponent = (Component2)swEntity.GetComponent();

            // Print the name of the component to which the

            // the selected entity belongs

            Debug.Print("Name of component to which the selected entity belongs: " + swComponent.GetSelectByIDString());

            // Set a component reference to this component

            swComponent.ComponentReference = "TestComponentReference";

            Debug.Print("Component reference added to the component to which the selected entity belongs: " + swComponent.ComponentReference);

            // Rebuild the assembly to see the component reference

            // beside the name of the component in the FeatureManager

            // design tree



        public SldWorks swApp;



Provide feedback on this topic

SOLIDWORKS welcomes your feedback concerning the presentation, accuracy, and thoroughness of the documentation. Use the form below to send your comments and suggestions about this topic directly to our documentation team. The documentation team cannot answer technical support questions. Click here for information about technical support.

* Required

Subject:   Feedback on Help Topics
Page:   Get Component Name From Selected Entity Example (C#)
*   I acknowledge I have read and I hereby accept the privacy policy under which my Personal Data will be used by Dassault Systèmes

Print Topic

Select the scope of content to print:


We have detected you are using a browser version older than Internet Explorer 7. For optimized display, we suggest upgrading your browser to Internet Explorer 7 or newer.

 Never show this message again

Web Help Content Version: API Help (English only) 2012 SP05

To disable Web help from within SOLIDWORKS and use local help instead, click Help > Use SOLIDWORKS Web Help.

To report problems encountered with the Web help interface and search, contact your local support representative. To provide feedback on individual help topics, use the “Feedback on this topic” link on the individual topic page.