finding calculating time difference

[easyfying]

hi
could someone help me how to find out todays firstbarofsession time and then subtract 24 hours from it

[NinjaTrader_Bertrand]

easyfying, you mean something like the below snippet?

if (Bars.FirstBarOfSession)
test = Time[0].AddHours(24);

That would Add 24 hrs to the end bar time of the first bar of the session.

[easyfying]

basically what i am trying to plot is if its an upday ,the complete session colour should be green and if its down day it shoud be red.following is my code but it only drawss the last bar of session...pls advise

if ( Bars.BarsSinceSession >=0)
                
            {
            if ((CurrentDayOHL().CurrentOpen[0] < Close[0]) &&  (ToTime(Time[0]) > 215900))
                
                {
                    BackColor = Color.FromArgb(100, Color.LightGreen);
                    
                }
            
            if ((CurrentDayOHL().CurrentOpen[0] > Close[0]) &&  (ToTime(Time[0]) > 215900))
                {
                    BackColor = Color.FromArgb(100, Color.LightPink);
                }
            }

[NinjaTrader_Bertrand]

easyfying, that's because you chose to do the coloring only from a certain time on for the bars where the condition holds true, you're not coloring the past bars at this point.

You can do that however with the BackColorSeries by providing how many bars back to color via the index - https://www.ninjatrader.com/support/...olorseries.htm

[easyfying]

yes i thought about it but problem is i am developing indicator for linebreak chart and there i cant give exact number of bars since session begin...because everyday there will be different numbers of bars formed

[NinjaTrader_Bertrand]

easyfying, correct but the BarsSinceSession property should reflect that. It would not be a static amount for the time based session, so giving you the actual bar count per session.

[easyfying]

thanks.
i wanted to plot background colour depending upon if the session was up or down.below code is working for me.but problem is the indicator shows rectangle only for previous day and not for all days.

            if (Bars.FirstBarOfSession)
            {
                if(PriorDayOHLC().PriorOpen[0] < PriorDayOHLC().PriorClose[0])
                
                    
                    {
                        DrawRectangle("Colorupdown", true, Time[1], PriorDayOHLC().PriorLow[0], Time[1].AddHours(-24), PriorDayOHLC().PriorHigh[0], Color.Transparent, Color.Green,2);
           
                    }
                
            else if(PriorDayOHLC().PriorOpen[0] > PriorDayOHLC().PriorClose[0])
                
                    
                    {
                        DrawRectangle("Colorupdown", true, Time[1], PriorDayOHLC().PriorLow[0], Time[1].AddHours(-24), PriorDayOHLC().PriorHigh[0], Color.Transparent, Color.Pink,2);
           
                    }
            }

[NinjaTrader_Bertrand]

The issue here is that you're really only drawing / modifying one object all the time by using the same tag id - namely the Colorupdown

When you are settings things for the new day / session you want to use a new tag id as well so a new draw object would get created and you would be able to see the history as desired.

http://www.ninjatrader.com/support/forum/showthread.php?t=3419

[easyfying]

thank you.it solved it..