Event Handler Methods in Dynamics 365 for Operations (AX7)

by | Updated March 29, 2021 | Development, Dynamics 365 for Finance and Operations

In Dynamics 365 for Operations (AX7) the preferred mechanism for customizations to existing objects is to use event handlers to react to various events rather than overriding methods on tables, forms, and classes. For example, to change what happens when a button is clicked in AX 2012 you override the clicked method and put code either before or after the super() call. In Dynamics 365 for Operations (AX7) you can react to the OnClicked event by copying the event handler method for the event and pasting the method into a class. Below is an example of an event handler method that reacts to the OnClicked event of a button on a form.

You can learn more about event handler methods and more in our online Dynamics 365 for Operations Development Workshop, beginning July 10! Detailed agenda and registration here.

Related Posts


  1. Daniel J. Zook

    Thanks for the info Becky.

    When is the code in the Event Handler executed in relation to standard code that is executed in the event that it is subscribed to? For example, when the button is clicked, does AX execute its standard code first and then any event handlers subscribed to the event?

    Another question: do you think Microsoft will include automatic migration of event handlers built in 2012 to D365 format? (See “Event Handler Nodes in the AOT [AX 2012]” here: https://msdn.microsoft.com/en-us/library/gg839762.aspx )

  2. Brandon Carmichael

    Hello Daniel:

    Unfortunately, with Event Handlers, it is difficult to know what the order of the event firing is. For example, having multiple objects subscribe to the same event can be interesting as we have no control over what fires first when the event is raised. If you need to have control of what is ran and when, I would recommend creating a class to control the sequence of events.

    In regards to your other question, I just asked four of our developers who attended the Dynamics 365 Tech Conference 2017 in Seattle, WA. They thought that it will be migrated but if the code is custom and over-layered then it will have to be reworked so that it is no longer a customization (over-layered).

    I hope this helps, if not I’d be happy to continue this conversation with you.

Submit a Comment

Your email address will not be published. Required fields are marked *

Upcoming Events


01jul11:00 am12:00 pmConfab Live with Stoneridge – Dataverse Virtual Entities

14jul12:00 pm12:30 pmBeyond Reporting - What Business Intelligence Can Do For Your Agribusiness

15jul10:00 am11:00 amMastering the Production Floor

21jul10:00 am10:30 amThe Modern Manufacturer: Manufacturing Software in the Real World

21jul12:00 pm1:00 pmIs it Worth it to Upgrade to Dynamics 365 Finance and Supply Chain Management? - Everything AX Users Need to Consider

28jul10:00 am10:30 amLot Management for Batch Manufacturers in Life Sciences, Chemical and Food

28jul2:00 pm2:30 pmConsiderations for Successful Testing Plans for Major Releases of Dynamics 365 Finance and Supply Chain Management

29jul11:00 am12:00 pmConfab Live with Stoneridge – Integration Strategies for End User Success


04aug2:00 pm2:30 pmSimplifying Payroll and HR Management with ADP Workforce Now

10aug(aug 10)8:00 am11(aug 11)11:00 amPower BI for Dynamics 365 - Online Workshop

11aug10:00 am10:30 amThe Modern Manufacturer - Enterprise Asset Management

11aug12:00 pm12:30 pmBusiness Intelligence with Dynamics 365 Finance and Supply Chain Management – Game Changing Insights and Analytics

11aug2:00 pm2:30 pmUsing Technology to Manage Complex Sales Pricing, Commission, and Rebate Programs

18aug10:00 am11:00 amTop Five Reasons Why NOW is the Right Time to Move from Salesforce to Dynamics 365 Customer Engagement

18aug10:00 am12:00 pmIntro to Power BI for Dynamics 365 Business Central – Online Workshop

18aug12:00 pm1:00 pmSolving the Biggest Challenges in Agribusiness Through Innovation and Technology

About Stoneridge
Stoneridge Software is a unique Microsoft Gold Partner, with emphasis on partner. With specialties in Microsoft Dynamics 365, Microsoft Dynamics AX, Microsoft Dynamics NAV, Microsoft Dynamics GP and Microsoft Dynamics CRM, we focus on attracting the most knowledgeable experts in the field to our team, and prioritize delivering stellar solutions with maximum impact for your business. At Stoneridge, we are deeply committed to your results. Each engagement is met with a dedicated team, ready to provide thorough, tailored, and expert service. Based in Minnesota, we intentionally “step into your shoes,” wherever you are. We focus on what you care about, and develop trusting, long-term relationships with our clients.

Subscribe To Our Blog

Sign up to get periodic updates on the latest posts.

Thank you for subscribing!