Hi Animesh,
Greetings from Syncfusion support.
After investigating your query, we have found that the
version of the Syncfusion Grid (20.4.51) and React (15.6.1) you are currently
using are not compatible with each other. So we suggest you update both React
and Grid to their latest versions, you will be able to use all of the features
of the Grid without any issues. We understand that updating can sometimes be a
hassle, but we assure you that it will be worth it to fully utilize the Grid's
capabilities.
Please let us know if you have any further queries.
Regards,
Santhosh Iruthayaraj