Unmanaged Approach: Error OnOrderUpdate

[bjunaid]

Hi,

I am getting an error message:

Object Reference not set to an instance of an object.

I am getting this error because of the following code:

protected override void OnOrderUpdate(Order order, double limitPrice, double stopPrice, int quantity, int filled, double averageFillPrice, OrderState orderState, DateTime time, ErrorCode error, string nativeError)
{
if (order.Name == [B]Order_Name[/B])
{
entryOrder = order;
}

I am getting this error because of if statement

if (order.Name == Order_Name)

. I don't get this error when I enter statement as follows:

if (order.Name.Contains("LongEntry") == true)

Order_Name is private string variable defined at the beginning of the script. My objective is to refine the code to make it more dynamic for submitting multiple/unique orders without writing the order name every time in OnOrderUpdate method.

I want to know if there is another way to do this or why this would not work.

Thanks,

[NinjaTrader_ChrisL]

Hello bjunaid, thanks for writing in.

First, you should use Visual Studio debugging to have the program break at the line where the exception occurs:

https://ninjatrader.com/support/help..._debugging.htm

The string variable should not cause a null reference exception. It is possible you are accessing entryOrder while it is null somewhere else in the script. Make sure to check:

if(entryOrder != null)
{
entryOrder.<Property>
}

I look forward to hearing of your results.

[bjunaid]

You are right it is being null somewhere. I will look for it.