Merge Guidelines into a Route Example (C#)

//---------------------------------------------------------------------------
// Preconditions:
// 1. Add SOLIDWORKS Routing as an add-in
//    (in SOLIDWORKS, select Tools > Add-Ins > SOLIDWORKS Routing).
// 2. Add SolidWorks.Interop.SwRoutingLib.dll as a reference
//    (in the IDE right-click the project,
//    select Add Reference, and browse install_dir\api\redist\CLR2).
// 3. In Tools > Options > System Options > Routing > Routing File Locations,
//    add locations of your SOLIDWORKS Routing files.
// 4. Open an assembly that contains a route.
// 5. Rename the namespace to match the name of your C# project.
// 6. In the FeatureManager design tree, select the sub-assembly that
//    contains the route.
// 7. Open an Immediate Window.
//
// Postconditions: All of the guidelines are merged into a single route.
//
// NOTE: Because the assembly is used elsewhere,
// do not save any changes when you close it.
//---------------------------------------------------------------------------

using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using SolidWorks.Interop.SWRoutingLib;
using System;
using System.Diagnostics;
namespace MergeGuidelines_CSharp.csproj
{
    partial class SolidWorksMacro
    {

        public void Main()
        {

            ModelDoc2 swModel = default(ModelDoc2);
            AssemblyDoc swTopLevelAssembly = default(AssemblyDoc);
            RouteManager rtRouteManager = default(RouteManager);
            AutoRoute autoRoute = default(AutoRoute);
            int resultCode = 0;
            bool boolstatus = false;

            swModel = (ModelDoc2)swApp.ActiveDoc;
            swTopLevelAssembly = (AssemblyDoc)swModel;

            // Get the RouteManager from the top-level assembly
            rtRouteManager = (RouteManager)swTopLevelAssembly.GetRouteManager();
            if (rtRouteManager == null)
            {
                Debug.Print("No RouteManager found in top-level document. ");
                return;
            }

            rtRouteManager.EditRoute();
            autoRoute = rtRouteManager.GetAutoRoute();
            resultCode = autoRoute.ShowGuidelines();

            // Select all guidelines
            resultCode = autoRoute.SelectGuidelines();
            // Merge guidelines
            boolstatus = autoRoute.MergeGuidelines();

            rtRouteManager.ExitRoute();

            swTopLevelAssembly.EditAssembly();
        }


        public SldWorks swApp;


    }
}