private void btnParseTrades_Click(object sender, EventArgs e)
        {
            var tradeValidator = new SimpleTradeValidator(logger);
            var tradeMapper    = new SimpleTradeMapper();
            var tradeParser    = new SimpleTradeParser(tradeValidator, tradeMapper);
            int numTrades      = tradeProcessor.ParseTrades(tradeParser, logger);

            txtNumTrades.Text = numTrades.ToString();
        }
        private void btnParseTrades_Click(object sender, EventArgs e)
        {
            IEnumerable <TradeRecord> trades = tradeProcessor.ParseTrades();

            txtNumTrades.Text = trades.Count().ToString();
        }
        private void btnParseTrades_Click(object sender, EventArgs e)
        {
            var trades = tradeProcessor.ParseTrades();

            txtNumTrades.Text = trades.Count().ToString();
        }