Hi
lixin,
Greetings
from Syncfusion support.
After
reviewing your query, we noticed an issue with defining frozen columns and
aggregates in the Syncfusion Grid. We created a sample based on your provided
code but could not replicate the issue. We recommend upgrading to the latest
Syncfusion package version, 26.2.4, as enhancements have been made to
the frozen and resizing features. Please refer to the below sample and
screenshot created based on the shared code example with updated Syncfusion
packager version where the Grid is rendered properly without any script issues.
Sample: https://stackblitz.com/edit/vkamzw-chzhkz?file=index.js,es5-datasource.js
Screenshot:

If
you continue to experience issues, please try replicating the problem with the
attached sample, or share a simple sample that reproduces the issue for further
investigation.
Regards
Aishwarya
R