Hiding the current selection of model items using Navisworks .NET API

By Saikat Bhattacharya

Hiding all the selected items from a given Navisworks model is very straight-forward. All that needs to be done is to put the selected items into a new collection (which is like a container for the selected items) and pass this new collection to the ActiveDocument.Models.SetHidden() method. The code is provided below for direct use -

using System;

using System.Collections.Generic;

using System.Windows.Forms;

using System.Text;

 

//Add two new namespaces

using Autodesk.Navisworks.Api;

using Autodesk.Navisworks.Api.Plugins;

 

namespace BasicPlugIn

{

   [PluginAttribute("BasicPlugIn.ABasicPlugin",                  

                    "ADSK",                                      

                    ToolTip = "BasicPlugIn.ABasicPlugin tool tip",

                    DisplayName = "Sample Plugin")]         

 

   public class ABasicPlugin : AddInPlugin                       

   {

      public override int Execute(params string[] parameters)

      {

        // Create hidden collection

        ModelItemCollection hidden = new ModelItemCollection();

 

        // Add all the items that are visible to visible collection

        hidden.AddRange(Autodesk.Navisworks.Api.Application.

          ActiveDocument.CurrentSelection.SelectedItems);

 

        // hide the remaining items

        Autodesk.Navisworks.Api.Application.

          ActiveDocument.Models.SetHidden(hidden, true);

 

        return 0;

      }

   }

}