Object deletion problem

[Shayan Lotfi]

Hello everyone

I use this code to draw SL  and TP lines. I have two problems:

1) I can't continue the lines until  Time < Time[i]; For Example :  Time[i-10]

2) Each time the indicator signals, the previous lines are not deleted to be displayed for the next signal. But this happens when the timeframe of the chart is changed.

please guide me.

//--- My Code
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 for(int i= MaxBars ; i>=0; i--)
       {   
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//---  Buy Signals:  
           if(BuySignal)
           {
		EntryPrice = Close[i+1];
		StopLoss = EntryPrice - 2*iATR(NULL,0,Arr_Perod,0; 
                TP1 = EntryPrice + (EntryPrice - StopLoss);
                TP2 = EntryPrice + 2*(EntryPrice - StopLoss);
                TP3 = EntryPrice + 3*(EntryPrice - StopLoss);
                if(Sl_TP)
                {
                    TLineDelete(0,"EntryPrice");
                    TLineDelete(0,"StopLoss");
                    TLineDelete(0,"TP1");
                    TLineDelete(0,"TP2");
                    TLineDelete(0,"TP3");                 
      			}
                Buy_Arrow[i]  = Low[i] - ArrowDisplacement*LMA_HMA;
                if(Show_SL_TP_Ray && Sl_TP > 0 ) 
                { 
                    TLineCreate(0,"EntryPrice","EntryPrice",0,Time[i+10],EntryPrice,Time[i],EntryPrice,clrYellow,SL_TP_Style,Last_SL_TP_width,"EntryPrice = "+DoubleToString(EntryPrice,_Digits));
                    TLineCreate(0,"StopLoss","StopLoss",0,Time[i+10],StopLoss,Time[i],StopLoss,clrRed,SL_TP_Style,Last_SL_TP_width,"StopLoss = "+DoubleToString(StopLoss,_Digits));
                    TLineCreate(0,"TP1","TP1",0,Time[i+10],TP1,Time[i],TP1,clrGreen,SL_TP_Style,Last_SL_TP_width,"TP1 = "+DoubleToString(TP1,_Digits));
                    TLineCreate(0,"TP2","TP2" ,0,Time[i+10],TP2,Time[i],TP2,clrGreen,SL_TP_Style,Last_SL_TP_width,"TP2 = "+DoubleToString(TP2,_Digits));
                    TLineCreate(0,"TP3","TP3" ,0,Time[i+10],TP3,Time[i],TP3,clrGreen,SL_TP_Style,Last_SL_TP_width,"TP3 = "+DoubleToString(TP3,_Digits));
      			} 
			} 
//---  Buy Signals End	

    
//--- My Code
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//+------------------------------------------------------------------+
//+------------------------------------------------------------------+ 
//| Create a trend line by the given coordinates                     | 
//+------------------------------------------------------------------+ 
bool TLineCreate(const long            chart_ID=0,        // chart's ID 
                 const string          name="TrendLine",  // line name 
                 const string          text="Label",      // Label                  
                 const int             sub_window=0,      // subwindow index 
                 datetime              time1=0,           // first point time 
                 double                price1=0,          // first point price 
                 datetime              time2=0,           // second point time 
                 double                price2=0,          // second point price 
                 const color           clr=clrRed,        // line color 
                 const ENUM_LINE_STYLE style=STYLE_SOLID, // line style 
                 const int             width=1,           // line width 
                 const string          tooltip="tooltip", // tooltip 
                 const bool            back=true,         // in the background 
                 const bool            selection=false,   // highlight to move 
                 const bool            hidden=true,       // hidden in the object list                  
                 const long            z_order=0)         // priority for mouse click 
  { 
   ResetLastError(); 
   if(!ObjectCreate(chart_ID,name,OBJ_TREND,sub_window,time1,price1,time2,price2)) 
     return(false);
   ObjectSetInteger(chart_ID,name,OBJPROP_COLOR,clr); 
   ObjectSetInteger(chart_ID,name,OBJPROP_STYLE,style); 
   ObjectSetInteger(chart_ID,name,OBJPROP_WIDTH,width); 
   ObjectSetInteger(chart_ID,name,OBJPROP_BACK,back); 
   ObjectSetInteger(chart_ID,name,OBJPROP_SELECTABLE,selection); 
   ObjectSetInteger(chart_ID,name,OBJPROP_SELECTED,selection); 
   ObjectSetInteger(chart_ID,name,OBJPROP_RAY_RIGHT,Last_SL_TP_Ray); 
   ObjectSetInteger(chart_ID,name,OBJPROP_HIDDEN,hidden); 
   ObjectSetString(chart_ID,name,OBJPROP_TEXT,text);   
   ObjectSetInteger(chart_ID,name,OBJPROP_ZORDER,z_order); 
   ObjectSetString(chart_ID,name,OBJPROP_TOOLTIP,tooltip);
   return(true); 
  }
//+------------------------------------------------------------------+
//|  Edit trend line                                                 |
//+------------------------------------------------------------------+
bool TLineEdit(const long              chart_ID=0,            // chart's ID 
                    const string          name="TrendLine",   // line name 
                    datetime              time1=0,            // first point time 
                    const bool            ray_right=false,    // line's continuation to the right
                    const ENUM_LINE_STYLE style=STYLE_DOT,    // line style 
                    const bool            hidden=true,       // hidden in the object list                  
                    const int             width=1)            // line width 
  {
   ResetLastError();

   if(!ObjectSetInteger(chart_ID,name,OBJPROP_RAY_RIGHT,ray_right))
      return(false);
   if(!ObjectSetInteger(chart_ID,name,OBJPROP_STYLE,style))
      return(false);
   if(!ObjectSetInteger(chart_ID,name,OBJPROP_WIDTH,width))
      return(false);
   if(!ObjectSetInteger(chart_ID,name,OBJPROP_HIDDEN,hidden))
      return(false);   
   return(true);
  }  
//+------------------------------------------------------------------+
//| The function deletes the trend line from the chart.              |
//+------------------------------------------------------------------+
bool TLineDelete(const long   chart_ID=0,       // chart's ID
                 const string name="TrendLine") // line name
  {
   ResetLastError();
   if(!ObjectDelete(chart_ID,name))
      return(false);
   return(true);
  }