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Insert and Change DeleteFace Feature Example (C#)

This example shows how to insert a DeleteFace feature and how to then modify that feature.

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

// Preconditions: Open:



// Postconditions: A DeleteFace feature is created and then modified.


// NOTE: Because this part document is used

//       with a SolidWorks online tutorial,

//       do not save any changes when closing

//       the document.

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

using SolidWorks.Interop.sldworks;

using SolidWorks.Interop.swconst;

using System;

using System.Diagnostics;

namespace DeleteFaceFeatureDataCSharp.csproj


    public partial class SolidWorksMacro


        public void Main()



        ModelDoc2 swModel = default(ModelDoc2);

        ModelDocExtension swModelDocExt = default(ModelDocExtension);

        Feature swFeature = default(Feature);

        DeleteFaceFeatureData swDeleteFaceFeature = default(DeleteFaceFeatureData);

        string featureName = null;

        bool boolstatus = false;

        int opt = 0;


        swModel = (ModelDoc2)swApp.ActiveDoc;

        swModelDocExt = (ModelDocExtension)swModel.Extension;


        // Select a face for the

        // DeleteFace feature

        boolstatus = swModel.Extension.SelectByID2("", "FACE", 0.002251015125069, -0.001872569429423, 0.02015405789763, false, 0, null, 0);


        // Create a DeleteFace feature

        boolstatus = swModelDocExt.InsertDeleteFace((int)swFaceDeleteOption_e.swFaceDelete_Default);        


        // Get the DeleteFace feature

        swFeature = (Feature)swModel.FirstFeature();

        while ((swFeature != null)) {

            featureName = swFeature.Name;  


            while (featureName != "DeleteFace1") {

                swFeature = (Feature)swFeature.GetNextFeature();

                featureName = swFeature.Name;



            Debug.Print("Feature name: " + featureName);

            swDeleteFaceFeature = (DeleteFaceFeatureData)swFeature.GetDefinition();

            boolstatus = swDeleteFaceFeature.AccessSelections(swModel, null);

            Debug.Print(" Number of deleted faces: " + swDeleteFaceFeature.GetDeletedFacesCount());


            // Get the DeleteFace feature's option

            opt = swDeleteFaceFeature.Options;

            Debug.Print(" Before changing the option...");



            // Change the DeleteFace feature's option

            swDeleteFaceFeature.Options = (int)swFaceDeleteOption_e.swFaceDelete_Patch;

            opt = swDeleteFaceFeature.Options;

            Debug.Print(" After changing the option...");



            // Save modification made to DeleteFace feature

            boolstatus = swFeature.ModifyDefinition(swDeleteFaceFeature, swModel, null);


            // Get next feature until no more features

            swFeature = (Feature)swFeature.GetNextFeature();





    public void DeleteFaceOptions(long options)


        switch (options) {

            case 0:

                Debug.Print("  Option = swFaceDelete_Default");


            case 1:

                Debug.Print("  Option = swFaceDelete_Patch");


            case 2:

                Debug.Print("  Option = swFaceDelete_Fill");


            case 3:

                Debug.Print("  Option = swFaceDelete_FillWithTangent");





        /// <summary>

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

        /// </summary>

        public SldWorks swApp;





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