Auto Age Calculator

Content Type: Widget
Categories: User Interface

Overview

Auto Age Calculator – Mendix Widget

The Auto Age Calculator is a custom-built Mendix widget designed to automatically calculate a user's age based on their Date of Birth (DOB). Once the DOB is provided as input, the widget instantly computes the age and updates the value in the specified attribute—eliminating the need for manual calculation or external systems.

This widget is especially useful in a wide range of industries such as banking, manufacturing, healthcare, HR, and government portals, where user age is a critical data point for validations, eligibility, or reporting purposes.

Key Benefits:

  • ✅ Automatic Age Calculation: Instantly calculates age based on DOB input.

  • 🔒 No Third-Party Dependencies: Fully self-contained within the Mendix environment; no need to rely on external APIs or services.

  • 🧩 Easy to Integrate: Seamlessly plug it into your Mendix forms and workflows.

  • ⚙️ Fully Configurable: Easily map the output to any Mendix attribute.

Ideal Use Cases:

  • Age-based eligibility checks in banking applications (e.g., loan or account applications).

  • User onboarding or employee profile setup in HR systems.

  • Compliance checks in manufacturing or industrial domains.

  • Age verification in government or education platforms.

With the Auto Age Calculator, you can enhance user experience and improve data accuracy—right from within your Mendix application, without writing complex logic or depending on third-party plugins.

Documentation

Typical Usage Scenario

The Auto Age Calculator widget is designed to be used in any Mendix application where a user's age needs to be automatically calculated based on their Date of Birth (DOB). This is particularly useful in:

  • Banking: Determine age-based eligibility for account creation or loan applications.

  • Manufacturing/HR: Populate employee records with age details during onboarding.

  • Healthcare: Calculate patient age for validations and reports.

  • Government or Educational Portals: Verify age for identity, access, or service eligibility.

By integrating this widget, Mendix developers can automate age calculations within forms without the need for external scripts or APIs.

Features and Limitations

Features:

  •  Automatically calculates age from a given Date of Birth.

  •  Updates the output age field instantly.

  • Works purely on the frontend — no microflows or backend calls required.

  • Lightweight and reusable across multiple pages or modules.

  •  No third-party dependencies or libraries.

Limitations:

  •  Only supports Gregorian calendar DOB formats (standard Mendix DateTime input).

  •  Doesn't support edge cases like different age calculation logic for non-standard calendars or cultural contexts.

  • Only works with single DateTime attribute (no age range calculations).

Dependencies (Optional)

  • There are no external dependencies. The widget is self-contained and works with default Mendix DateTime and Decimal attributes.

Installation (Optional)

  1. Download the .mpk file and import it into your Mendix project via App Explorer > Add Widget.

  2. Drag and drop the Auto Age Calculator widget into your page.

  3. Bind the input Date of Birth attribute and the output Age attribute via widget properties.

  4. Commit and run your app.

Configuration (Optional)

  1. Set the DOB Attribute as the input parameter.

  2. Set the Age Attribute where the calculated value will be stored.

  3. Optionally, configure visibility, styling, or validation messages using standard Mendix options.

Known Bugs (Optional)

  • No critical bugs known in version 1.0.0.

  • Widget assumes input DOB is always valid — ensure proper validation in your forms.

  • Age calculation is based on the current system time, so any changes in the server/client clock may affect the output in some edge cases.

Frequently Asked Questions (Optional)

Q1: Can this widget calculate age in months or days?A1: No, the widget currently calculates full age in years only.

Q2: Is the widget compatible with all Mendix versions?A2: It works with Mendix Studio Pro 10.0.0 and above 

Q3: Does it require internet or any API call?A3: No, this is a fully offline widget that runs in the Mendix frontend environment.

Q4: Can I trigger a microflow after age calculation?A4: Yes, it will trigger, but the upcoming version upgrade will give multiple possibilities to the onclick action, if this version, it will automatically age will calculate 

Releases

Version: 1.0.0
Framework Version: 10.0.0
Release Notes: Release Notes – Version 1.0.0 Initial release of the Auto Age Calculator widget. Automatically calculates the user's age based on input Date of Birth (DOB). Directly updates the output age attribute within the Mendix model. Fully client-side logic — no dependency on external services or APIs. Compatible with use cases in banking, HR, manufacturing, and government applications. Easy to integrate into forms and microflows within any Mendix app. This version provides a stable, lightweight, and reusable solution for age calculation at the app level without the need for custom JavaScript or backend logic.