chart strategy parameter enabling problem

[AllanRBrewer]

When trying to modify parameters of a strategy which has been applied to a chart, it is necessary to change "Enabled" to "false", then "Apply", then change the parameter, then change "Enabled" back to "true", then "Apply" before the result is activated.

The "Enabled" property seems redundant at this point.

[NinjaTrader_Ray]

I have not tested but I believe so. The reason is that you have to disable the existing running strategy instance. Then you can change the parameter and restart it.

[AllanRBrewer]

But that could all happen triggered by the event of a parameter change and press of "Apply" - it does not need to be done explicitly by the user which is very tedious and cumbersome.

[NinjaTrader_JoshP]

AllanRBrewer,

Reason it can't just be part of the Apply button is what if all you wanted to do was add a new strategy. Pressing Apply all of a sudden would create a new instance of your old strategy too.

[AllanRBrewer]

Firstly you seem to be saying that the changing of parameters in a strategy on a chart has been made much more cumbersome so that multi-strategies can be put on a chart, which I would have thought was very much a minor requirement, particularly since there seems no way of colour-differentiating the positions of the different strategies.

Secondly, a programmer can easily determine which strategies are new or have had parameter changes when the apply button is pressed and act accordingly.

[NinjaTrader_JoshP]

What I am saying is Enabled is required for strategy persistence. You cannot press Apply without starting new instances of the strategy. Just like in 6.5, pressing Apply = new instance. 7, there is a requirement to be able to not create new instances and the way to achieve this is by preventing them from being new ones via Enabled property states.

Furthermore, without getting into the details, it is required for recovering strategies as you start NT each time.

[AllanRBrewer]

Hi Josh,

Pressing Apply in NT6.5 doesn't create new instances of strategies. If nothing has been changed then the strategy remains unchanged, if a parameter has been changed then that change is reflected as a change to the positions on the chart.

I'm not trying to be awkward here just feeding back from a usage point of view. I am sure you will get further feedback saying the new procedure is cumbersome, and as a programmer myself I can see that it could be written a better way.

[NinjaTrader_JoshP]

Allan,

I am not sure why you feel it does not create a new instance. You can see the instances by going to the Strategies tab of the Control Center and see how it adds a new one every time you hit the Apply button.

[AllanRBrewer]

Hi Josh,

Yes I see that now - though on the chart it only shows one strategy label and one set of positions (the latest if parameters amended) on the chart itself. I am still dubious that the "apply" button is the right way to tackle that anomoly but I have made the feedback and will leave it to you guys to decide.

[NinjaTrader_JoshP]

Thank you Allan. Your thoughts have been noted in our feedback list.