Doesn't exist in current context.

[NickA]

I am sure this is dead easy if you know how. I am trying to do some timing using the stopwatch class (recommended over datetime).

In initialize I have
Stopwatch timer = new Stopwatch();
timer.Start();

How do I access timer in OnBarUpdate? I tried adding time to the #region variable but that caused run time errors. How should I do this properly?

Many thanks.

[NinjaTrader_Bertrand]

NickA, since is this more general C# this is unfortunately outside of the scope we can support here, but I believe you would need to track the stopWatch.Elapsed with a timeSpan object?

[NickA]

Appreciate the info. The problem I have is far more basic than that. Stated generally (so hopefully not beyond the scope of support )

How/where do I instantiate an object O of Class C so I can initialise it in OnStartUp (or Initialize) and access it OnBarUpdate?

I am getting run time errors "Object reference not set to an instance of an object." if I instantiate it in OnStartUp when I access it. I guess its kind of a 'scope' thing.

[NinjaTrader_Bertrand]

You're correct, this is related to the scope of the object definition - for example this simple test in OnBarUpdate() works ok for me -

protected override void OnBarUpdate()
{
if (Historical) return;

Stopwatch stopWatch = new Stopwatch();

stopWatch.Start();

TimeSpan ts = stopWatch.Elapsed;

Print(ts.ToString());
}

[NickA]

Thanks Bertrand appreciate it. I finally sussed it.

I needed to have
timer = new Stopwatch()

rather than
Stopwatch timer = new Stopwatch();

The latter creates an instantiates a new timer with scope that only extends to NT's Initialize rather than instantiating my global timer object.

C# is not my mother tongue.