classesBuilder.append(sortedStyle);
}
// The first and last columns could be the same column.
classesBuilder.append(" ").append(
isFooter ? style.lastColumnFooter() : style.lastColumnHeader());
appendExtraStyles(prevHeader, classesBuilder);
// Render the last header.
TableCellBuilder th = tr.startTH().colSpan(prevColspan).className(classesBuilder.toString());
enableColumnHandlers(th, column);