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Support Article

Refresh in Mozilla is not evenly happening in tree grid



On changing the field value, in the child level of a tree grid, a declare expression must be triggered to the Update value of another field in the parent level and a refresh section initiated to display the updated value. This fails in the Firefox browser.

Error Messages

Not Applicable

Steps to Reproduce

  1. Create a case.
  2. Navigate through the screens till the screen which has an issue.
  3. Expand the parent level and edit the fields at child level.
  4. Update the values (such as, Remote hours, Travel hours).

Root Cause

onChange events require consistent time to be triggered after the declare expressions calculations are performed.


Here’s the explanation for the reported behavior:

The values when entered slowly at the child level, are updated on the parent level immediately even in the Firefox browser. The order of actions triggered in Pega is synchronous. That is, the onChange event is triggered first, followed by the declare expressions calculations, and the values are updated to the Clipboard finally. This process of event triggering occurs faster in Chrome browser when compared to Mozilla Firefox browser.


Published January 30, 2019 - Updated October 8, 2020

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