static void Main(string[] args) { OOPCSEntities db = new OOPCSEntities(); var sum = 0; var expentitures = db.Expenditures.ToArray(); for (int i = 0; i < expentitures.Length; i++) { sum += expentitures[i].Price; } Console.WriteLine("Tong Tien La : {0}", sum); }
static void Main(string[] args) { var md = new OOPCSEntities(); Expenditure[] list = md.Expenditures.ToArray(); int sum = 0; for (int i = 0; i < list.Length; i++) { Console.WriteLine(list[i].id + " " + list[i].Note + " " + list[i].Price + " " + list[i].Date); sum += list[i].Price; } Console.WriteLine("Tong gia tien la :{0}đ", sum); }