Please Help, Try Modify just SL or TP of Position and failed

please help me how can i select position, and modify its TP and keep its SL as it was without modification

it was easy on mql4 using ordermodify(orderticket(), orderopenprice(), orderstoploss(), OrderOpenprice()+25*pips)

thanks in advance

Maybe u can try this. Mine is as below, if the price move 100 pips further and it will modify the SL.

But need to include  (#include <Trade/Trade.mqh>) at the beginning.

---

for (int i = PositionsTotal()-1 ; i >= 0 ; i--){

      ulong posTicket = PositionGetTicket(i);

      

      if(PositionSelectByTicket(posTicket)){

      

         if(PositionGetString(POSITION_SYMBOL) == _Symbol){

            double posSl = PositionGetDouble(POSITION_SL);

            double posTp = PositionGetDouble(POSITION_TP);

            double bid = SymbolInfoDouble(_Symbol,SYMBOL_BID);

            double ask = SymbolInfoDouble(_Symbol,SYMBOL_ASK);

            double posOpenPrice = PositionGetDouble(POSITION_PRICE_OPEN);

            

            if(PositionGetInteger(POSITION_TYPE) == POSITION_TYPE_BUY){

            

               if( iclose1 > ( posOpenPrice + 1000 * SymbolInfoDouble(_Symbol,SYMBOL_POINT))){

                  double sl = posOpenPrice;

                  

                  if(sl > posSl){

                     trade.PositionModify(posTicket,sl,posTp);

                     Print("Over 100 pips, Breakeven!");

                     }

                  }

         

            }else if(PositionGetInteger(POSITION_TYPE) == POSITION_TYPE_SELL){

            

               if( iclose1 < ( posOpenPrice - 1000 * SymbolInfoDouble(_Symbol,SYMBOL_POINT))){

                  double sl = posOpenPrice;

                  

                  if(sl < posSl){

                     trade.PositionModify(posTicket,sl,posTp);

                     Print("Over 100 pips, Breakeven!");

                     }

                 }

            }

        }

      }

      }

I had an issue where mt5 was doing inverse of what tradingview was doing? Placed an AU Buy at .6759 with sl .67474. Price was continously going up on tradingview but bringing me further down in drawdown. Within 5 minutes I was stopped out even through I was no where near drawdown. 

void Singgle_TP() //================
 {  
 
 double NewTPB=0, NewTPS=0, NewSLB=0, NewSLS=0;
 //----------------------------------------  
    for(int i=PositionsTotal()-1; i>=0; i--)
       {
        if(m_position.SelectByIndex(i))
           {      
         if(New_TP != 0.0)
               {   
               NewTPB = NormalizeDouble(m_position.PriceOpen() + New_TP *PairPip, Spipsfactor) ;  
               NewTPS = NormalizeDouble(m_position.PriceOpen() - New_TP *PairPip, Spipsfactor ) ; 
               }else{
                     NewTPB = m_position.TakeProfit();
                     NewTPS = m_position.TakeProfit();
                    }    
       if(New_SL !=0.0 )
              {   
              NewSLB = NormalizeDouble(m_position.PriceOpen() - (New_SL*PairPip), Spipsfactor) ;  
              NewSLS = NormalizeDouble(m_position.PriceOpen() + (New_SL*PairPip), Spipsfactor ) ;  
              }else
                {
                NewSLB = m_position.StopLoss();
                NewSLS = m_position.StopLoss();
                }       
                      
       string order_commB =  " [Pair : "+ _Symbol+ " ]--[ Ask: "+ DoubleToString(m_symbol.Ask(),Spipsfactor)+ "]--[ Open Order: "+ DoubleToString(m_position.PriceOpen(),Spipsfactor) 
         + "]--[ SL: "+ DoubleToString(m_position.StopLoss(),Spipsfactor)+" => "+ DoubleToString(NewSLB,Spipsfactor) + "]--[ TP: "+ DoubleToString(m_position.TakeProfit(),Spipsfactor)+" => "+ DoubleToString(NewTPB,Spipsfactor)+" ]";
         
       string order_commS =  " [Pair : "+ _Symbol+ " ]--[ Bid: "+ DoubleToString(m_symbol.Bid(),Spipsfactor)+ "]--[ Open Order: "+ DoubleToString(m_position.PriceOpen(),Spipsfactor) 
         + "]--[ SL: "+ DoubleToString(m_position.StopLoss(),Spipsfactor)+" => "+ DoubleToString(NewSLS,Spipsfactor) + "]--[ TP: "+ DoubleToString(m_position.TakeProfit(),Spipsfactor)+" => "+ DoubleToString(NewTPS,Spipsfactor)+" ]";
         
                                     
       if(m_position.Symbol() == _Symbol && m_position.Magic() == Magic_Ea && m_position.PositionType() == POSITION_TYPE_BUY  )
              {
                if( ( NewTPB != 0.0 && NewTPB != m_position.TakeProfit() ) || ( NewSLB != 0.0  && NewSLB != m_position.StopLoss() ) )  
                if(m_trade.PositionModify(m_position.Ticket(), NewSLB, NewTPB)) 
                     Print("Modify TP/SL BUY : "+order_commB);  
                           else  
                              Print("Modify TP/SL BUY FAILED : "+order_commB + get_error_message(GetLastError()));  
                           Sleep(100);       
                 }
        if(m_position.Symbol() == _Symbol && m_position.Magic() == Magic_Ea && m_position.PositionType() == POSITION_TYPE_SELL  )
              {   
              if( ( NewTPS != 0.0 && NewTPS != m_position.TakeProfit() ) || ( NewSLS != 0.0  && NewSLS != m_position.StopLoss() ) )  
              if(m_trade.PositionModify(m_position.Ticket(), NewSLB, NewTPB)) 
                     
                     Print("Modify TP/SL SELL :"+order_commS); 
                              else  
                                 Print("Modify TP/SL SELL FAILED:"+ order_commS+ get_error_message(GetLastError()));  
                           Sleep(100);    
                    }     
                    //===================
              }    
        }
      //-------------------------------------------------------------------------------------------------------------    
   }

try this, friend..