Discussing the article: "Risk-Based Trade Placement EA with On-Chart UI (Part 2): Adding Interactivity and Logic"
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Check out the new article: Risk-Based Trade Placement EA with On-Chart UI (Part 2): Adding Interactivity and Logic.
Learn how to build an interactive MQL5 Expert Advisor with an on-chart control panel. Know how to compute risk-based lot sizes and place trades directly from the chart.
In the first part of this series, we focused on designing a static on-chart control panel for our Risk-Based Trade Placement tool. The goal was to create a clean and organized user interface that allows traders to enter trade parameters such as order type and entry price directly from the chart. At that stage, the interface was only visual and could not respond to user actions.
In this second part, we will make the interface interactive and functional. Our main objective is to connect the graphical components to real logic so that when a user clicks the Calculate Lot button, the program reads the input fields, computes the correct lot size based on the defined risk, and displays the result instantly on the chart. Similarly, when the Send Order button is clicked, the system will execute a trade using the calculated lot size and user-defined parameters.
By the end of this article, you will have a fully functional on-chart lot size calculator that reacts to user actions and performs real-time computations. This practical step transforms our static panel into an intelligent trading assistant, enhancing precision and control when planning trades.
Author: Chacha Ian Maroa