Hi,

I tried to port the "Create Save Bodies Feature and Create an Assembly (VBA)" Sample from the API documentation to C#:

private void button2_Click(object sender, EventArgs e)
{
     ModelDoc2 modelDoc = (ModelDoc2) _solidWorks.ActiveDoc;
     SelectionMgr selectionMgr = (SelectionMgr) modelDoc.SelectionManager;
     Feature feature = (Feature) modelDoc.FirstFeature();
     FeatureManager featureManager = modelDoc.FeatureManager;
     object[] bodies = new object[] {};
     string featureName = string.Empty;
     bool continueLoop =true;
     while((null != feature) && (continueLoop==true)) {
          featureName = feature.GetTypeName2();
          if("SolidBodyFolder" == featureName) {
               bodies =GetBodies(feature);
               continueLoop = false;
          }
          if(true == continueLoop) {
               feature = (Feature) feature.GetNextFeature();
          }
     }

     int bodyCount = bodies.Count();
     object[] fileNames = new object[bodyCount];
     if(0 < bodyCount) {
          for(int count = 0;count <= bodyCount-1;count++) {
               string fileName = string.Format("C:\\\\Temp\\\\body{0}.sldprt", count + 1);
               fileNames[count] = fileName;
          }
     }

     object fileNamesObject = fileNames;
     object bodiesObject = bodies;

     featureManager.CreateSaveBodyFeature(bodiesObject, fileNamesObject, "C:\\\\Temp\\\\MultiBodyAssembly.sldasm", false, false);
}

private object[] GetBodies(Feature feature)
{
     BodyFolder bodyFolder = (BodyFolder)feature.GetSpecificFeature2();
     int bodyCount = bodyFolder.GetBodyCount();
     object[] bodies = new object[] { };
     if (0 < bodyCount)
     {
          bodies = (object[])bodyFolder.GetBodies();
     }
     return bodies;
}

But when running it (SWX 2009 x64 SP4.1), I get a COMExecption "The server threw an exception. (Exception from HRESULT: 0x80010105 (RPC_E_SERVERFAULT))

ErrorCode is -2147417851

When running the VBA example, everything works fine.

Update:

When I try to run it from within an addin, I get an AccessViolationException "("Attempted to read or write protected memory. This is often an indication that other memory is corrupt."

Alex