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Add Smart Components Example (C#)

This example shows how to add Smart Components to an assembly.


// Preconditions:

// Open:

// <SOLIDWORKS_install_dir>\samples\tutorial\smartcomponents\stepped_shaft.sldasm


// Postconditions:

// 1. <SOLIDWORKS_install_dir>\samples\tutorial\smartcomponents\Bearing.sldprt

//     is opened.

// 2. Bearing.sldprt is added

//     as three separate Smart Components at the

//     specified coordinates to stepped_shaft.sldasm.


// NOTE: Because this assembly is used in a SOLIDWORKS

//       online tutorial, do not save any changes

//       when you close the assembly document.


using SolidWorks.Interop.sldworks;

using SolidWorks.Interop.swconst;

using System;

using System.Windows.Forms;

using System.Diagnostics;

namespace AddSmartComponentsCSharp.csproj


    public partial class SolidWorksMacro



    public void Main()



        ModelDoc2 swModel;

        AssemblyDoc swAssy;

        string tmpPath;

        ModelDoc2 tmpObj;

        Component2 swcomponent;

        string AssemblyTitle;

        int errors = 0;

        int warnings = 0;

        bool boolstat;


        swModel = (ModelDoc2)swApp.ActiveDoc;


        // Get title of assembly document

        AssemblyTitle = swModel.GetTitle();


        boolstat = true;

        string strCompModelname = null;

        strCompModelname = "Bearing.sldprt";


        // Because the component resides in the same folder as the assembly, get

        // the assembly's path, strip out the assembly filename, concatenate the

        // the rest of the path to the component filename, and use

        // this string to open the component

        tmpPath = swModel.GetPathName();

        int idx;

        idx = tmpPath.LastIndexOf("stepped_shaft.sldasm");

        string compPath;

        tmpPath = tmpPath.Substring(0, (idx));

        compPath = string.Concat(tmpPath, strCompModelname);




        // Open the component

        tmpObj = (ModelDoc2)swApp.OpenDoc6(compPath, (int)swDocumentTypes_e.swDocPART, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, "", ref errors, ref warnings);


        // Check to see if the file is read-only or cannot be found; display error

        // messages if either

        if (warnings == (int)swFileLoadWarning_e.swFileLoadWarning_ReadOnly) {

            MessageBox.Show("This file is read-only.");

            boolstat = false;



        if (tmpObj == null) {

            MessageBox.Show("Cannot locate the file.");

            boolstat = false;



        //Re-activate the assembly so that you can add the component to it

        swModel = (ModelDoc2)swApp.ActivateDoc2(AssemblyTitle, true, ref errors);

        swAssy = (AssemblyDoc)swModel;


        // Add the component to the assembly document and

        // print the component name to the Immediate Window

        swcomponent = swAssy.AddSmartComponent(strCompModelname, 0, 0.13, -0.1);


        swcomponent = swAssy.AddSmartComponent(strCompModelname, 0, 0.13, -0.42);


        swcomponent = swAssy.AddSmartComponent(strCompModelname, 0, 0.13, 0.49);







    /// <summary>

    /// The SldWorks swApp variable is pre-assigned for you.

    /// </summary>

    public SldWorks swApp;



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