internal void AddTransferCash(double value, DateTime date, Account accOut, Account accIn)
{
var transfer = new TransferCash(date, accOut, accIn, value);
Transfers.Add(transfer);
transfer.Move(value);
SaveAccounts();
SaveTransfers();
}
internal void DeleteTransfer(TransferCash transfer)
{
Transfers.Remove(transfer);
SaveTransfers();
SaveAccounts();
}
