Hide Table of Contents

Add Objects to Selection List Example (C#)

This example shows how to populate the selection list with objects that have not been preselected through

the user interface.

// Preconditions: Open a model that contains Sketch1 and Sketch2.
// Postconditions:
// 1. Inspect the Immediate Window.
// 2. The selection list containing Sketch1 is suspended.
// 3. Another selection list is populated with two objects.
// 4. The type of the last object in the selection list is reported.
// 5. The previous selection list with Sketch1 is resumed.
// 6. Sketch1 is placed in edit mode.
// ---------------------------------------------------------------------------
using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using System.Runtime.InteropServices;
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
namespace AddObjectToSelectionList_CSharp.csproj
partial class SolidWorksMacro

ModelDoc2 swModel;
SelectionMgr selMgr;
SelectData selData;
FeatureManager featMgr;
Feature feat;
DispatchWrapper[] arrObjIn = new DispatchWrapper[2];
Feature[] selObjs = new Feature[2];
object selobj;
int featCount;
int i;
string typeName;
int j;
int numAdded;
bool boolstatus;
int ret;
int count;

public void Main()
            swModel = (
            selMgr = (
            selData = (
            featMgr = swModel.FeatureManager;

            featCount = featMgr.GetFeatureCount(
            feat = (
            j = 0;
for (i = 0; i <= featCount; i++)

if ((feat != null))
                    typeName = feat.Name;
                    typeName = typeName.ToUpper();
if ("SKETCH" == typeName.Substring(0, 6))
                        selObjs[j] = feat;
                        arrObjIn[j] =
new DispatchWrapper(selObjs[j]);
                        j = j + 1;
                    feat = (

// Add one object to the current selection list
            boolstatus = swModel.Extension.SelectByID2("Sketch1", "SKETCH", 0, 0, 0, false, 0, null, 0);

// Start a new selection list
            ret = selMgr.SuspendSelectionList();
Debug.Print("The current selection list with " + ret + " object (Sketch1) is suspended.");

// Add two objects to the new selection list
            numAdded = selMgr.AddSelectionListObjects((arrObjIn), selData);
Debug.Print("A new selection list is started.");

// Get number of objects in the new selection list (should be 2)
            count = selMgr.GetSelectedObjectCount();
Debug.Print("The selection list now contains " + count + " objects.");

// Get the last object in the new selection list
            selobj = selMgr.GetSelectedObject6(count, -1);
Debug.Print("The last object in the selection list is of swSelectType_e = " + selMgr.GetSelectedObjectType3(count, -1) + ".");

// Go back to the previous selection list
Debug.Print("The previous selection list is resumed.");

// Get the number of objects in the selection list (should be 1)
            count = selMgr.GetSelectedObjectCount();
Debug.Print("The selection list now contains " + count + " object (Sketch1).");

Debug.Print("Sketch1 is in edit mode.");


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:   Add Objects to Selection List 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) 2015 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.