reference IFibonacciRetracements fibRetracementsLongs

[ct]

Scenario: I have drawn a FibonacciRetracement previously. I want to change the EndTime parameter later based on some program logic condition being met.

Question: Can I reference the IFibonacciRetracements so i can change only the EndTime parameter of an existing drawobject or do I need to redraw the FibonacciRetracement again? Or can I use DrawObjects to get the reference?

I would hope to change only that one attribute instead of save all the parameters to redraw it again later.

[NinjaTrader_PaulH]

Hello ct,

Thanks for your post.

Yes, you can change only the one parameters and the fib will be redrawn using that along with the other properties that you did not change.

here is a quick example you can test with (on live or market replay data)

Note that I declared the object in the variables region as private at the class level so I can access the properties more easily.

Once the data is live, the fib is drawn on the first bar close back 10 bars. Then, 5 bars later the fib is then drawn to the current bar as EndBarsAgo is all I changed.

        #region Variables
            private bool doitonce = true;
            private int startbar;
            private IFibonacciRetracements fibRetracements;
        #endregion

        protected override void Initialize()
        {
            Overlay                = true;
        }

        protected override void OnBarUpdate()
        {
            if (Historical) 
                return;  // wait until live data

            if (!Historical && doitonce)  // draw on close of first live bar once.
            {
                fibRetracements = DrawFibonacciRetracements("tag1", true, 10, Low[10], 0, High[0]);
                doitonce = false;
                startbar = CurrentBar;   // save the start bar
            }

            if (CurrentBar - startbar == 5 && fibRetracements != null )
            {
                fibRetracements.EndBarsAgo = 0;   // set the fib to the current bar
            }    
        }

[ct]

Paul

Thanks.

Will this allow me to save or reference "fibRetracements" outside of a method/procedure/subroutine or on a return to that method after having exited?
private IFibonacciRetracements fibRetracements; <--- I think this is all I was lacking. Duh. Cheers

[NinjaTrader_PaulH]

Hello ct,

Thanks for your reply.

I believe that will be the case when you create the variable/object at the class level.

[ct]

Paul

Got it. Give yourself a gold start from me.

And thanks for the prompt reply. Much appreciated.

Cheers