public IEnumerable <BankAccount> ReadFromStorage()
{
List <BankAccount> bankAccountsList = new List <BankAccount>();
int id;
string name;
string surname;
long sum;
int bonus;
string gradation = "Base";
using (BinaryReader reader = new BinaryReader(File.Open(FILENAME, FileMode.Open)))
{
while (reader.PeekChar() > -1)
{
id = reader.ReadInt32();
name = reader.ReadString();
surname = reader.ReadString();
sum = reader.ReadInt64();
bonus = reader.ReadInt32();
gradation = reader.ReadString();
AccountManager manager = new AccountManager();
bankAccountsList.Add(manager.CreateBankAccount(gradation));
BankAccount tempAccount = bankAccountsList.Last();
tempAccount.AddAccontInfo(id, name, surname, sum, bonus);
}
}
return(bankAccountsList);
}