Add and Get Property Extensions Example (C#)

This example shows how to add and get a property extension on a part.

//---------------------------------------------
// Preconditions:
// 1. Open a part.
// 2. Open the Immediate window.
//
// Postconditions:
// 1. Adds three property extensions to the part.
// 2. Gets the three property extensions added to the part.
// 3. Examine the Immediate window.
//----------------------------------------------
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
using System;
using System.Diagnostics;
 
namespace Macro1CSharp.csproj
{
    public partial class SolidWorksMacro
    { 
 
        public void Main()
        {
            PartDoc swPart = default(PartDoc);
            int retVal = 0;
            string[] objAdded = new string[3];
            string objRetrieved = null;
 
            swPart = (PartDoc)swApp.ActiveDoc;
 
            Debug.Print("Property extensions added:");
 
            objAdded[0] = "12345PID";
            retVal = swPart.AddPropertyExtension(objAdded[0]);
            Debug.Print(" First property extension: " + objAdded[0]);
 
            objAdded[1] = "6789PID";
            retVal = swPart.AddPropertyExtension(objAdded[1]);
            Debug.Print(" Second property extension: " + objAdded[1]);
 
            objAdded[2] = "00000PID";
            retVal = swPart.AddPropertyExtension(objAdded[2]);
            Debug.Print(" Third property extension: " + objAdded[2]);
 
            Debug.Print("Property extensions retrieved:");
 
            objRetrieved = (string)swPart.GetPropertyExtension(retVal - 3);
            Debug.Print(" First property extension: " + objRetrieved);
 
            objRetrieved = (string)swPart.GetPropertyExtension(retVal - 2);
            Debug.Print(" Second property extension: " + objRetrieved);
 
            objRetrieved = (string)swPart.GetPropertyExtension(retVal - 1);
            Debug.Print(" Third property extension: " + objRetrieved);
 
 
        }
 
        /// <summary>
        ///  The SldWorks swApp variable is pre-assigned for you.
        /// </summary>
        public SldWorks swApp;
    }
}