Get fibonacci levels - Exception occurred while binding a dynamic operation

[egurenk]

Hello,

I'm trying to get the fibo retracements levels given a tag name. The script captures the object but when tries to read the levels appears the following error: "Error on calling 'OnBarUpdate' method on bar 4105: An unexpected exception occurred while binding a dynamic operation."

May I have to save the dynamic object before accessing the fibo levels?

The code:

-------

foreach (dynamic obj in DrawObjects.ToList())

{

if(obj.Tag.ToString().Equals("fibonacci_test"))

{

// Access the object by assuming that it is the Type we expect

Print(String.Format("FINONACCI {0} detected!", obj.Tag));

foreach (PriceLevel p in obj.PriceLevels)

{

Print(p.Value);

Print(p.GetPrice(obj.StartAnchor.Price, obj.EndAnchor.Price - obj.StartAnchor.Price, false));

}

}

}

-------

Thanks

[NinjaTrader_ChelseaB]

Hello egurenk,

Below is a link to a forum post with some sample code of getting price levels from a fibonacci.

https://ninjatrader.com/support/forum/forum/historical-beta-archive/version-8-beta/82637-example-of-fibonacci-retracement-please?p=711093#post711093

[egurenk]

Hello.

I've tried with the example but the case it's different. I'm trying to get the levels from a fibo already created by other indicator, so i can get the tag name (with the code posted before) and i need to access to the fibo levels.

I think that the problem appears accesing to the fibo probably. How can I cast the dynamic obj to FibonacciExtension? I don't know if it's the right way.

Thanks

[NinjaTrader_ChelseaB]

Hello egurenk,

Below is a link to the help guide.
https://ninjatrader.com/support/help...assemblies.htm

From the example in the help guide I've changed the type of FibonacciRetracements to FibonacciExtensions.

foreach (dynamic dt in DrawObjects.ToList())
{
if(dt.ToString().Equals("NinjaTrader.NinjaScript.D rawingTools.FibonacciExtensions"))
{
Type type = dt.PriceLevels.GetType().GetGenericArguments()[0];
Assembly assembly = type.Assembly;
var pl = assembly.CreateInstance(type.FullName, false, BindingFlags.CreateInstance, null, new object[] { 55.5, Brushes.Red, 2 }, new System.Globalization.CultureInfo("en-US"), new object[] {});
dt.PriceLevels.GetType().GetMethod("Add").Invoke(d t.PriceLevels, new object[] { pl } );
this.ForceRefresh();
}
}