public string BatchAddCustomer(BatchSubmitCustomer input)
		{
			List<Customer> list = new List<Customer>();
			for( int i = 0; i < input.Name.Length; i++ ) {
				if( input.Name[i].Length > 0 && TryToInt(input.Age[i]) > 0 && input.Tel[i].Length > 0 ) {
					Customer c = new Customer {
						Name = input.Name[i],
						Age = TryToInt(input.Age[i]),
						Address = input.Address[i],
						Tel = input.Tel[i],
						Email = input.Email[i]
					};
					list.Add(c);
				}
			}

			return XmlHelper.XmlSerialize(list, Encoding.UTF8);
		}
        public string BatchAddCustomer(BatchSubmitCustomer input)
        {
            List <Customer> list = new List <Customer>();

            for (int i = 0; i < input.Name.Length; i++)
            {
                if (input.Name[i].Length > 0 && TryToInt(input.Age[i]) > 0 && input.Tel[i].Length > 0)
                {
                    Customer c = new Customer {
                        Name    = input.Name[i],
                        Age     = TryToInt(input.Age[i]),
                        Address = input.Address[i],
                        Tel     = input.Tel[i],
                        Email   = input.Email[i]
                    };
                    list.Add(c);
                }
            }

            return(XmlHelper.XmlSerialize(list, Encoding.UTF8));
        }