Object Reference is Required Compile Error (CS0120 )

General Discussions
1

‘’’

//This namespace holds Indicators in this folder and is required. Do not change it.
namespace NinjaTrader.NinjaScript.Indicators
{
public class MyCustomTestIndicator : Indicator
{
protected override void OnStateChange()
{
if (State == State.SetDefaults)
{
Description = @“Enter the description for your new custom Indicator here.”;
Name = “MyCustomTestIndicator”;
Calculate = Calculate.OnBarClose;
IsOverlay = false;
DisplayInDataBox = true;
DrawOnPricePanel = true;
DrawHorizontalGridLines = true;
DrawVerticalGridLines = true;
PaintPriceMarkers = true;
ScaleJustification = NinjaTrader.Gui.Chart.ScaleJustification.Right;
//Disable this property if your indicator requires custom values that cumulate with each new market data event.
//See Help Guide for additional information.
IsSuspendedWhileInactive = true;
}
else if (State == State.Configure)
{
}
}

	private class testClass()
	{
		int a = CurrentBar;		
		
	}

	protected override void OnBarUpdate()
	{
		//Add your custom indicator logic here.
	}
}

}

2

I get a compile error,
MyCustomTestIndicator.cs,An object reference is required for the non-static field method or property ‘NinjaScriptBase.CurrentBar’,CS0120,55,12,

Why is that?
First time in the new forum, is this the correct category?
thankx

3

Hi and welcome, The problem you have there is that you are accessing CurrentBar from a sub-class. CurrentBar is a property of the indicator itself. You’ll need to alter your subclass to take a script property or just use member functions instead.

public class testClass()
	{
           NinjaScriptBase _caller;
               
           public testClass(NinjaScriptBase caller)
           {
                 _Caller = caller;
           }

           public void DoStuff()
           {
	           int a = _caller.CurrentBar;		
           }
		
	}
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