IfcDoc.FormEdit.toolStripMenuItemInsertPropertyset_Click C# (CSharp) Method

        private void toolStripMenuItemInsertPropertyset_Click(object sender, EventArgs e)
        {
            TreeNode tn = this.treeView.SelectedNode;
            if (tn.Parent.Tag is DocSchema)
            {
                tn = tn.Parent;
            }
            DocSchema docSchema = (DocSchema)tn.Tag;
            DocPropertySet docPset = new DocPropertySet();
            docSchema.PropertySets.Add(docPset);
            this.treeView.SelectedNode = this.LoadNode(tn.Nodes[4], docPset, docPset.Name, true);
            this.toolStripMenuItemEditRename_Click(sender, e);
        }