repeat column in table in word document using Open XML SKD

// Create Grid

TableGrid tg = t.Descendants<TableGrid>().FirstOrDefault();

                            GridColumn gc = new GridColumn() { Width = "1024" };

                            tg.AppendChild(gc);

// Get all rows and append cell to each row

                            IEnumerable<TableRow> trs = t.Descendants<TableRow>();

                            foreach (TableRow tr in trs)

                            {

                                tr.AppendChild(new TableCell(new Paragraph(new Run(new Text("")))));

                            }