}
return "Avg: " + totalAge / items.size();
}
}
};
dataGrid.addColumn(ageColumn, new SafeHtmlHeader(SafeHtmlUtils.fromSafeConstant(constants
.cwDataGridColumnAge())), ageFooter);
dataGrid.setColumnWidth(ageColumn, 7, Unit.EM);
// Category.
final Category[] categories = ContactDatabase.get().queryCategories();