public override bool Run(FeatureContext context) { OpenFileDialog dlg = new OpenFileDialog(); dlg.Filter = "Step File (*.stp;*.step)|*.stp;*.step||"; if (DialogResult.OK != dlg.ShowDialog()) { return(true); } ShowShapeReaderContext renderContext = new ShowShapeReaderContext(context.RenderView.SceneManager); StepReader reader = new StepReader(); reader.Read(dlg.FileName, renderContext); return(true); }