Hi Prashant,
We analyzed the sample that you have shared and found that you haven’t handled the update action at the server side.
When binding the data to grid using url adaptor, we need to handle the CRUD operations at the server side. Please refer to the below online documentation.
Since the enableAutoSaveOnSelectionChange property of the Grid is “true”(by default it is true), the save action will be triggered when you edit a record and select on another record. If this property is disabled, you wont be able to edit another record unless the edited record is saved/cancelled.
So we suggest you to handle the server side event for the record updation as illustrated in the above documentation link in order to resolve the reported issue.
Regards,
Ragavee U S.