Need Help in Deleting 1 Pending Order Symbol from many existing symbols

[FxNewbie]

Dear All friends

Now I'm creating an EA to run concurrently on multiple symbols. In certain situations, I need to delete just 1 symbol from the many symbols that are currently open. Until now I still fail in using the OrderSelect and Orderdelete commands to delete that  symbol.

I'm very happy if there are friends who can help me in coding. Thank you very much.

[Keith Watford]

FxNewbie:

 Until now I still fail in using the OrderSelect and Orderdelete commands to delete that  symbol.

Are you using MT4?

Show your code that you are trying to use.

[Marzena Maria Szmit]

I assume you use mq4 code – so this simple code should do the trick. I recommend using loop starting from the OrdersTotal and counting down (this way when some trades are closed, we won’t miss the other trades in the queue):

string symbol = “EURUSD”;
for(int i=OrdersTotal()-1; i>=0; i--) {

      if(OrderSelect(i,SELECT_BY_POS))   {

            if(OrderSymbol()==symbol)

              if(OrderType()>1){
                               //delete pending trades

                               bool res = OrderDelete(OrderTicket());

                }

                else {
                               //here you can add a function to close market trades (use proper prices to close)

if(OrderType()==OP_BUY){
                             bool res = OrderClose(OrderTicket(),OrderLots(),NormalizeDouble(MarketInfo(OrderSymbol(), MODE_BID),Digits),100);            

}

else if(OrderType()==OP_SELL){
                             bool res = OrderClose(OrderTicket(),OrderLots(),NormalizeDouble(MarketInfo(OrderSymbol(), MODE_ASK),Digits),100);        

}

        }

    }

} 

[Keith Watford]

Keith Watford #:

Are you using MT4?

Show your code that you are trying to use.

As you have not responded, I will assume that you are using MQL4 and will move this topic to the MQL4 section.

[William Roeder]

Marzena Maria Szmit #:

if(OrderType()==OP_BUY){
  bool res = OrderClose(OrderTicket(),OrderLots(),NormalizeDouble(MarketInfo(OrderSymbol(), MODE_BID),Digits),100);            
}
else if(OrderType()==OP_SELL){
  bool res = OrderClose(OrderTicket(),OrderLots(),NormalizeDouble(MarketInfo(OrderSymbol(), MODE_ASK),Digits),100);        
}

1. MT4: You can use OrderClosePrice() instead of Bid/Ask and be direction independent — no need to check order type to get the close price.
   MT5: you can use PositionGetDouble(POSITION_PRICE_CURRENT)

   Simplified:

    bool res = OrderClose(OrderTicket(),OrderLots(),OrderClosePrice(),100);            
   

2. You used NormalizeDouble, It's use is usually wrong, as it is in your case.

   1. Floating point has a infinite number of decimals, it's your not understanding floating point and that some numbers can't be represented exactly. (like 1/10.)
                Double-precision floating-point format - Wikipedia, the free encyclopedia

      See also The == operand. - MQL4 programming forum (2013)

   2. Print out your values to the precision you want with DoubleToString - Conversion Functions - MQL4 Reference.

   3. SL/TP (stops) need to be normalized to tick size (not Point) — code fails on non-currencies.
                On 5Digit Broker Stops are only allowed to be placed on full pip values. How to find out in mql? - MQL4 programming forum (2011)

      And abide by the limits Requirements and Limitations in Making Trades - Appendixes - MQL4 Tutorial and that requires understanding floating point equality Can price != price ? - MQL4 programming forum (2012)

   4. Open price for pending orders need to be adjusted. On Currencies, Point == TickSize, so you will get the same answer, but it won't work on non-currencies. So do it right.
                Trailing Bar Entry EA - MQL4 programming forum (2013)
                Bid/Ask: (No Need) to use NormalizeDouble in OrderSend - MQL4 programming forum (2012)

   5. Lot size must also be adjusted to a multiple of LotStep and check against min and max. If that is not a power of 1/10 then NormalizeDouble is wrong. Do it right.
                (MT4 2013)) (MT5 2022))

   6. MathRound() and NormalizeDouble() are rounding in a different way. Make it explicit.
                MT4:NormalizeDouble - MQL5 programming forum (2017)
                How to Normalize - Expert Advisors and Automated Trading - MQL5 programming forum (2017)

   7. Prices you get from the terminal are already correct (normalized).

   8. PIP, Point, or Tick are all different in general.
                What is a TICK? - MQL4 programming forum (2014)