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Support Article

On-change action does not work correctly for radio buttons



Actions configured  on the Change event for radio buttons are triggered even when the radio button value is not changed.

Error Messages

Not Applicable

Steps to Reproduce

  1. Configure a section consisting of radio button with options.
  2. Create an action set for radio buttons such as displaying the section along with a data transform to clear values on the change event.
  3. At runtime, click the same value on the radio button. The action event on the radio buttons is triggered even when there is no change in the radio button value.

Root Cause

A defect in Pegasystems’ code  or rules.


Perform the following local-change before applying the data transform to clear the values:

Use a conditional expression to check for a change in the option selected.

Published August 15, 2019 - Updated October 8, 2020

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