about for()

[Boripath Boonrit]

want  value "TimeOpenFirstOrder" to use
how to fix


int TimeOpenFirstOrder;
      for(int k=0;k<=OrdersHistoryTotal();k++)
      {
         if(OrderSelect(k,SELECT_BY_POS,MODE_HISTORY))
         {
            if(OrderSymbol()==Symbol() && OrderMagicNumber()==MagicNumber)
            {
            
               if(OrderType()==OP_BUY ||OrderType()==OP_SELL ) 
                        {
                           if(OrderComment()=="onebuystop1" ||OrderComment()=="onesellstop1")
                              {
                                TimeOpenFirstOrder=TimeDayOfYear(OrderOpenTime());        /////////if have Order ... TimeOpenFirstOrder is ....
                               }
                        }
                if(OrdersHistoryTotal()==0)       //////if have not close order
                {
                TimeOpenFirstOrder=0;            /////// TimeOpenFirstOrder=0
                } 
                    
      Print("TimeOpenFirstOrder=",TimeOpenFirstOrder); 

////want  value "TimeOpenFirstOrder" to use down
                         
            for(int i=0;i<= (TimeDayOfYear( TimeCurrent() ) - TimeOpenFirstOrder );i++)
    
               {              

               }
}

[Eleni Anna Branou]

Please use the </> button to insert your above code.

[William Roeder]

1. When you post code please use the CODE button (Alt-S)! (For large amounts of code, attach it.) Please edit your (original) post.
             General rules and best pratices of the Forum. - General - MQL5 programming forum
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2. for(int k=0;k<=OrdersHistoryTotal();k++)

   If there are n entries their position is [0 .. n-1]. Drop the equal sign.
   

3.  if(OrderComment()=="onebuystop1" ||OrderComment()=="onesellstop1")     

   Not a good idea to use comments, brokers can change comments, including complete replacement.

4. if(OrdersHistoryTotal()==0)       //////if have not close order
                   {
                   TimeOpenFirstOrder=0;            /////// TimeOpenFirstOrder=0
                   } 

   This code will never run. If the total is zero, the for loop exits immediately. Initialize your variable when declared.