C#

[Serializable]
    public class Accounts
    {
        public Accounts()
        {
            List = new List<Account>();
        }

        public List<Account> List { get; set; }
        
        
        public decimal TotalBalance()
        {
            decimal balance = 0;
            foreach (Account a in List)
            {
                balance += a.Balance;
            }
            return balance;
        }

        public decimal TotalEquity()
        {
            decimal equity = 0;
            foreach (Account a in List)
            {
                equity += a.Equity;
            }
            return equity;
        }
    }

[Serializable]
    public class Account
    {
        public Account(string path)
        {
            Path = path;
            Initialize();
        }

        private bool Initialize()
        {
            using (FileStream fs = new FileStream(Path, FileMode.Open, FileAccess.Read))
            {
                using (StreamReader reader = new StreamReader(fs))
                {
                    while (!reader.EndOfStream)
                    {
                        var line = reader.ReadLine();
                        var values = line.Split(',');
                        Broker = values[0];
                        Name = values[1];
                        AccountNumber = values[2];
                        Balance = decimal.Parse(values[3]);
                        Equity = decimal.Parse(values[4]);
                        break;
                    }
                }
            }
            return true;
        }

        public bool Update()
        {
            using (FileStream fs = new FileStream(Path, FileMode.Open, FileAccess.Read))
            {
                using (StreamReader reader = new StreamReader(fs))
                {
                    while (!reader.EndOfStream)
                    {
                        var line = reader.ReadLine();
                        var values = line.Split(',');
                        Balance = decimal.Parse(values[3]);
                        Equity = decimal.Parse(values[4]);
                        break;
                    }
                }
            }
            return true;
        }
        private string Path;
        public string Broker { get; set; }
        public string Name { get; set; }
        public string AccountNumber { get; set; }
        public decimal Balance { get; set; }
        public decimal Equity { get; set; }
    }

Account acc = new Account();
acc.Broker = savedBroker;
acc.Name = savedName;
.... etc.

if (File.Exists(settingsFileName))
            {
                Stream TestFileStream = File.OpenRead(settingsFileName);
                BinaryFormatter deserializer = new BinaryFormatter();
                accounts = (Accounts)deserializer.Deserialize(TestFileStream);
                TestFileStream.Close();
                foreach (Account a in accounts.List)
                {
                    ListViewItem item = new ListViewItem(new string[] { a.Broker, a.Name, a.AccountNumber, a.Balance.ToString(), a.Equity.ToString() });
                    listView1.Items.Add(item);
                }
            }

Stream TestFileStream = File.Create(settingsFileName);
BinaryFormatter serializer = new BinaryFormatter();
serializer.Serialize(TestFileStream, accounts);
TestFileStream.Close();

saynasystem wrote:

is it possible ?

Manfred R. Bihy wrote:

Thanks