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Some of you may have seen me complain about the mouse scroll wheel incrementing and decrementing the position size. Depending on your work flow, it may or may not be a problem for you. Since my strategy involves frequent changing position size, my trades sometimes get inadvertently altered if I touch the scroll wheel before shifting focus from the Position size textbox.
I've figured out the mechanics to fix this flaw in an addon. Basically, it is a proxy for the NT chart trader. Since I only need to tweak a couple things for my narrow workflow, it is currently only function over form. I wasn't planning on doing much more than making it functional for my own personal use. But if there's much interest, I may complete and test it for public consumption.
Can you help answer these questions from other members on NexusFi?
I will be inetrested in it as sometimes the same issue arrises are moving a chart trader or order entry window and then touching scroll wheel seems to change order settings away the default.
I'm not sure if you are aware why it happens? The only way it happens if the position size field "gets focus" (you click on it). Maybe you're entering a different quantity. That's all it takes. The scroll wheel increments and decrements the value. Moving a chart or window won't cause it. That is an intended and sometimes welcome behavior. I don't think so for this application but that's just my opinion. In any case, click somewhere else like the body of your chart. That takes focus off the position size text box and puts it on the chart. Then the scroll wheel won't affect the position size anymore. I could do 5 or 6 trades in the span of just a few minutes while changing the value each time. If I forget to change the focus, I can get into trouble.
as simple as my rteply was It was that I do know how to pos. quantity selector works, and often have issues no noticing intra trade my scroll wheel is touched want then it changes unoticed by me to either flip my pos. the other direction as too many contracts added then have to loose part of the pos. profit or just an incorrect value that can lead to mishaps intra trade and early pos. exits. So this will be helpful to me and I will be sure that there are others it can help.
I'm currently demoing NT8 for a potential purchase, and the scroll wheel whipping up the number of contracts was definitely something I noticed right away that could be disastrous. It'd be nice if that could be disabled in the options...but knowing Ninjatrader, they'll probably just "forward it to the dev team" and hope a third party sells a $100 solution to customers instead.
I bought the lifetime license. Overall, I'm very happy with the platform. I wrote a proof-of-concept add-on that fixes this behavior but it isn't finished for public consumption. This would be so easy for them to fix. They chose to use a listbox (or similar) control instead of a plain ole textbox. That's what I did in the add-on. So, you have to type the answer. Scrolling does nothing in a textbox.
I doubt that they think this is a mistake, so I don't think they will fix it.
The choice to make the position size box scrollable clearly was deliberate. I've noticed that it's a common design choice in many programs to not make quantity input fields only updatable with keystrokes; they will often use the scroll wheel or some kind of arrow controls instead.
As you say, they could easily change the behavior. I doubt that most users have been inconvenienced by the current behavior, so I don't see them as having much of an incentive to change it.
But I think your addon is a worthwhile alternative for anyone whose trading style makes this an issue. I understand not necessarily wanting to release something that you think might not be ready for general release. But it does sound like something that would be worth putting in the Downloads section, if you get it in the condition you want, because it would fill a need for some traders.
The ones who need it, would really need it.
Bob.
When one door closes, another opens.
-- Cervantes, Don Quixote
I have no doubt it was intended. Normally, I would like the feature. The reason I find it troublesome is that I am constantly scrolling the wheel in scrolling the charts as well. That muscle memory of scrolling the chart is the dominant behavior. I may tend to fidget with the wheel micro adjusting charts that complicates it for me.
There's really no reason they can't do both. A single parameter tick box would be sufficient to allow the user to choose their preferred behavior. The simplest solution would be to simply have dual boxes, one textbox and their listbox overlaying the same location on the page. The tick box would simply make one hidden and the other visible, effectively disabling the one least desired.
