backtesting get result

how we get the result , fitness... ratio... from backtesting

i try a lot , but still not good.:

    public double MaxBalanceDrawdownPercentages { get; set; }
        public double LosingTrades { get; set; }
        public double MaxEquityDrawdownPercentages { get; set; }
        public double NetProfit { get; set; }
        public double ProfitFactor { get; set; }
        public double SharpeRatio { get; set; }
        public double SortinoRatio { get; set; }
        public double TotalTrades { get; set; }
        public double WinningTrades { get; set; }

only receive 0 a value

thanks.