/// <summary> /// Get Count By AddressBookType /// </summary> public void getCountByAddressBookType() { var countData = dataTable.AsEnumerable().GroupBy(BookType => BookType.Field <string>("AddressBookType")). Select(BookType => new { BookType = BookType.Key, BookTypeCount = BookType.Count() }); foreach (var list in countData) { Console.WriteLine("AddressBookType =" + list.BookType + " , " + "AddressBookCount = " + list.BookTypeCount); } }