Casting BarsType

[msx01]

Hello,

I need to do a casting to reference to a subclass of BarsType.
But I always get an exception and not know why.

The issue is easy to reproduce if you load this indicator on a chart of minutes.

Any help is welcome.

Best Regards.

protected override void OnStartUp()
{
	try
	{
		// A "superclass variable" points to a "subclass object":
		BarsType a = this.Bars.BarsType;
		
		// The Print is ok, because this.Bars.BarsType is of the type "MinuteBarsType"
		Print( a.GetType().ToString() ); // ... "NinjaTrader.Data.MinuteBarsType"
		
		// The casting fails although the types are equals. And I dont know why.
		NinjaTrader.Data.MinuteBarsType b = (NinjaTrader.Data.MinuteBarsType)a;
	}
	catch( Exception e )
	{
		Print( e.ToString() );
	}
}

[NinjaTrader_Matthew]

Hello,

We do not have any documentation in this area, so I am limited on the support I can give you.

Can you give me an idea of what you're trying to accomplish and when you need to work with the MinuteBarsType? Is there a reason you cannot stay with just bar types?

I try the following modification to your code and it works

		protected override void OnStartUp()
		{
			
			try
			{
				// A "superclass variable" points to a "subclass object":
				BarsType a = this.Bars.BarsType;
								
				Print( a.ToString());  //NinjaTrader.Data.MinuteBarsType
					
				BarsType b = a;
				Print(b.ToString()); // NinjaTrader.Data.MinuteBarsType
				
			}
			catch( Exception e )
			{
				Print( e.ToString() );
			
			}
		
		}

However whether this works for you depends on what you're trying to accomplish.