Discussion of article "Change Expert Advisor Parameters From the User Panel "On the Fly""

[MetaQuotes]

New article Change Expert Advisor Parameters From the User Panel "On the Fly" is published:

When developing complex Expert Advisors, the number of external parameters can be very large. And settings very often need to be changed manually, making the whole process very time-consuming, given a massive list of parameters. One can, of course, prepare sets in advance and have them saved, yet it may not be exactly what is required in some cases. This is where MQL5 comes in handy, as it always does.

Let us try to create a user panel that will allow us to change parameters of an Expert Advisor "on the fly" while trading. This may be relevant to those who trade manually or in semi-automatic mode. Upon any change made, parameters will be written to a file from which they will then be read by the Expert Advisor to be further displayed on the panel.

Author: Anatoli Kazharski

[Denis Lazarev]

I didn't see in the video how the indicator was redrawn after changing the parameter, did I miss something?

[Anatoli Kazharski]

lazarev-d-m:
I didn't see in the video how the indicator was redrawn after changing the parameter, did I miss something?

No, everything is correct. This is not taken into account in the presented example. The purpose of the article was to implement the scheme of changing parameters from the info-panel.

By the way, I think this site already has articles with examples on the issue you are interested in. But maybe I will write something more on this topic. I have some ideas.

[Vladislav Andruschenko]

good article for beginners. Thank you.

[Denis Lazarev]

The article is really interesting, but my knowledge is not enough to write such an article, I am still at the level of mql4 and I can't learn a new language, it is too unfriendly.

I really want to combine your article and https://www.mql5.com/en/articles/505.

It will turn out a kind of strategy tester, which will be a little slower, but an order of magnitude more clearly demonstrate the pros and cons of the strategy, which will eventually result in a smaller number of "passes" because the human brain is much better at analysing information than any software method of selecting parameters, there is a stupid fit to history.

[Andrey Khatimlianskii]

Too bad there is no access to the properties of any EA, then you could make a universal "parameter changer".

[Andrey Khatimlianskii]

lazarev-d-m:

I would like to combine your article and https://www.mql5.com/en/articles/505

It will turn out to be a kind of strategy tester, which will be a bit slower, but will demonstrate the pros and cons of the strategy more clearly, which will result in fewer "passes" because the human brain is much better at analysing information than any software method of selecting parameters, there is a stupid adjustment to history.

Good idea, just such a tester is needed.

And if you add sliders for parameters and the function of auto-scrolling of each slider, it will be a song in general.

[Rustamzhan Salidzhanov]

komposter:

And if you add sliders for parameters and auto-scrolling function for each slider, it will be a song.

As far as I remember this problem has not been solved yet : https://www.mql5.com/ru/forum/139237 https://www.mql5.com/ru/forum/6626

So there is room for creativity.

[Andrey Khatimlianskii]

FAQ:

As far as I remember this problem has not been solved yet : https://www.mql5.com/ru/forum/139237 https://www.mql5.com/ru/forum/6626

So there is room for creativity.

Mouse scroll has nothing to do with it, you need an ordinary graphical slider (for example, like a Windows volume control).

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komposter:
The mouse scroll has nothing to do with it, you need a regular graphic slider.

Well, there is a graphic slider.

[Andrey Khatimlianskii]

sergeev:
well, there's a graphic slider.

Is that a question or sarcasm? )