EA Should only take one trade per signal...not trade every new bar after it gets that signal

[Braven]

Hey Guys .....I'm new here 

So I've been trying this coding thing for some time now and now my biggest challenge is that my EA does enter a trade when the requirments are met , the only problem is that after it enters a trade given a signal ...it continues taking trades after signal and it trades every new bar 

I just need help with it only executing one trade per signal etc..

Thank you guys in Advance!!!!

Much Appreciate it.

I was only trying it out for Sell signals only and i got stuck 

The code is as follows:

      

   

bool ConditionSell1 =false;

double  SignalValue =0.0001;





//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {  
     
     
      

   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---
   
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {    
    
       static datetime timestamp;
     datetime time = iTime(_Symbol,PERIOD_CURRENT,0);
     if(timestamp != time){
     timestamp = time;
     
     
    
      double Bid = NormalizeDouble(SymbolInfoDouble(_Symbol,SYMBOL_BID),_Digits);
      
      
      MqlRates PriceInformation[];
      
      ArraySetAsSeries(PriceInformation,true);
      
      int Data =CopyRates(_Symbol,_Period,0,3,PriceInformation);
      
      double PriceArray[];
      
      static int AwesomeDefination = iAO(_Symbol,PERIOD_CURRENT);
      
      ArraySetAsSeries(PriceArray,true);
      
      CopyBuffer(AwesomeDefination,0,0,3,PriceArray);
      
      double AwesomeValue= NormalizeDouble(PriceArray[0],6);
      
      if(AwesomeValue <0-SignalValue)
      {
         ConditionSell1 = true;
      }
      
      if(ConditionSell1==true)
      {
         double sl = Ask + 7000 * SymbolInfoDouble(_Symbol,SYMBOL_POINT);
           double tp = Ask - 71000 * SymbolInfoDouble(_Symbol,SYMBOL_POINT);
        trade.Sell(LotsToTrade,NULL,Bid,sl,tp,NULL);
        ConditionSell1 =false;
      
      }
      
    }
    
 }