Get and Set FeatureManager Design Tree Display (C#)

//----------------------------------------------------
// Preconditions:
// 1. Verify that the specified document exists.
// 2. Open the Immediate window.
//
// Postconditions:
// 1. Opens the assembly and gets the FeatureManager design tree's display-related property
//    design tree's display-related property values.
// 2. Examine both the Immediate window and the FeatureManager
//    design tree, then press F5.
// 3. Re-examine both the Immediate window and the FeatureManager
//    design tree to verify the changes.
//
// NOTE: Because this assembly document is used
// elsewhere, do not save changes.
//----------------------------------------------------
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System;
using System.Diagnostics;

namespace ViewFeatureManagerDesignTreeCSharp.csproj
{
    partial class SolidWorksMacro
    {

        public void Main()
        {
            ModelDoc2 swModelDoc = default(ModelDoc2);
            FeatureManager swFeatMgr = default(FeatureManager);
            string document = null;
            int errors = 0;
            int warnings = 0;


            document = "C:\\Users\\Public\\Documents\\SOLIDWORKS\\SOLIDWORKS 2018\\samples\\tutorial\\advdrawings\\bladed shaft.sldasm";

            swModelDoc = (ModelDoc2)swApp.OpenDoc6(document, (int)swDocumentTypes_e.swDocASSEMBLY, (int)swOpenDocOptions_e.swOpenDocOptions_Silent, "", ref errors, ref warnings);
            swFeatMgr = (FeatureManager)swModelDoc.FeatureManager;

            Debug.Print("----------------- Before changing FeatureManager design tree properties -----------------");
            Debug.Print("View dependencies     = " + swFeatMgr.ViewDependencies);
            Debug.Print("View features         = " + swFeatMgr.ViewFeatures);
            Debug.Print("Show feature details  = " + swFeatMgr.ShowFeatureDetails);
            Debug.Print("Show hierarchy only   = " + swFeatMgr.ShowHierarchyOnly);

            System.Diagnostics.Debugger.Break();
            // Examine the Immediate window and
            // FeatureManager design tree before
            // resuming the macro

            // Change details, dependencies, hierarchy, and
            // features-related properties
            if ((swFeatMgr.ViewDependencies))
            {
                swFeatMgr.ViewFeatures = true;
            }
            else
            {
                swFeatMgr.ViewDependencies = true;
            }

            if ((swFeatMgr.ShowFeatureDetails))
            {
                swFeatMgr.ShowHierarchyOnly = true;
            }
            else
            {
                swFeatMgr.ShowFeatureDetails = true;
            }

            Debug.Print("----------------- After changing FeatureManager design tree properties -----------------");
            Debug.Print("View dependencies     = " + swFeatMgr.ViewDependencies);
            Debug.Print("View features         = " + swFeatMgr.ViewFeatures);
            Debug.Print("Show feature details  = " + swFeatMgr.ShowFeatureDetails);
            Debug.Print("Show hierarchy only   = " + swFeatMgr.ShowHierarchyOnly);
        }

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

        public SldWorks swApp;

    }
}