Event System

Stable Version 11.0.1 (O11)
Also available for 10, 9.1, 9.0, Older
Published on 11 June 2019 by 
Created on 22 August 2014
Use custom events in your OutSystems apps! Communicate events instantly between web blocks, refactor your screen logic, use divide-and-conquer for complex forms, build reusable components, and much more. And do all of these with a beautifully simple API.
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See the documentation for an overview of what it can do:


Notice: This component takes advantage of private and undocumented Platform APIs, which can change without notice. As a result, this component may unexpectedly break as the Platform is upgraded. We advise proper testing to ensure that your applications continue to work as expected when upgrading/patching the Platform.

What’s new (11.0.1)
  • Fix bug that was causing non-rendered event handlers to be triggered.
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Components, Libraries, Mobile Plugins
Support Options
This component is not supported by OutSystems. You may use the discussion forums to leave suggestions or obtain best-effort support from the community, including from Leonardo Fernandes who created this component.
Event System has no dependencies.
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