how can i detect if a position close by stoploss or by takeprofits?

that the question:

how can i detect if a position close by stoploss or by takeprofits?

i make this, but i not work so fine... any help?

 

private void OnPositionsClosed(PositionClosedEventArgs args)
{
    var closedPositionInfo = args.Position;
    
    if (lastposId == closedPositionInfo.Id) {
                
        if ((closedPositionInfo.StopLoss == Symbol.Bid) || (closedPositionInfo.StopLoss == Symbol.Ask)){
            Print ("last position closed by stoploss");
        } else if ((closedPositionInfo.TakeProfit == Symbol.Bid) || (closedPositionInfo.TakeProfit == Symbol.Ask)){
            Print ("last position closed by takeprofits");
        } else {
            Print ("we do not know why...");
        }
    
    }

    closedPositionInfo = null;
}

thanks for your help!!!