IfcDoc.FormEdit.toolStripMenuItemEditBuildConcepts_Click C# (CSharp) Method

        private void toolStripMenuItemEditBuildConcepts_Click(object sender, EventArgs e)
        {
            DocTemplateDefinition docTemplatePset = this.m_project.GetTemplate(new Guid("f74255a6-0c0e-4f31-84ad-24981db62461"));

            // also check for new template additions
            DocTemplateDefinition docTemplatePropertyReference = this.m_project.GetTemplate(new Guid("e20bc116-889b-46cc-b193-31b3e2376a8e"));

            if (docTemplatePset == null || docTemplatePropertyReference == null)
            {
                // import it
                string filepath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location) + @"\defaults.mvdxml";
                this.ImportMVD(filepath);
                docTemplatePset = this.m_project.GetTemplate(new Guid("f74255a6-0c0e-4f31-84ad-24981db62461"));
                if(docTemplatePset == null)
                {
                    MessageBox.Show(this, "The required file information is missing. You may need to re-download the application from www.buildingsmart-tech.org.");
                    return;
                }
            }

            // select property sets within dialog
            DocConceptRoot docRoot = null;
            DocEntity docEntity = null; // all properties
            if(this.treeView.SelectedNode.Tag is DocConceptRoot)
            {
                docRoot = (DocConceptRoot)this.treeView.SelectedNode.Tag;
                docEntity = docRoot.ApplicableEntity;
                using (FormSelectProperty form = new FormSelectProperty(docEntity, this.m_project, true))
                {
                    if (form.ShowDialog(this) == System.Windows.Forms.DialogResult.OK)
                    {
                        this.BuildConceptForPropertySets(docRoot, docTemplatePset, form.IncludedPropertySets);
                    }
                }
            }
            else if (this.treeView.SelectedNode.Tag is DocModelView)
            {
                // all entities
                DocModelView docView = (DocModelView)this.treeView.SelectedNode.Tag;
                foreach (DocConceptRoot docEachRoot in docView.ConceptRoots)
                {
                    docEntity = docEachRoot.ApplicableEntity;

                    // find all property sets directly linked to object
                    List<DocPropertySet> psets = new List<DocPropertySet>();
                    foreach(DocSection docSection in this.m_project.Sections)
                    {
                        foreach(DocSchema docSchema in docSection.Schemas)
                        {
                            foreach(DocPropertySet docPset in docSchema.PropertySets)
                            {
                                if ((docPset.PropertySetType == "PSET_OCCURRENCEDRIVEN" ||
                                    docPset.PropertySetType == "PSET_TYPEDRIVENOVERRIDE") &&
                                    !String.IsNullOrEmpty(docPset.ApplicableType) && docPset.ApplicableType.Equals(docEntity.Name))
                                {
                                    psets.Add(docPset);
                                }
                            }
                        }
                    }

                    this.BuildConceptForPropertySets(docEachRoot, docTemplatePset, psets.ToArray());
                }
            }
        }