Hi Stephen,
We have created a grid sample with the provided code sample and the issue is not reproducible at our end. Please find the sample and video demo in below location.
Also, we could see that you have defined the offline property of the ejDataManager as true which on enabling loads the data in offline mode. With offline as true, the DataManager requests the server only once and further data manipulation operation can be done at client side itself. Thus, no other post request will occur on performing any operation in grid.
So, please try the above sample and if you still face any issues, please share the following information.
1. On what action, the re-query triggers the WebAPI Get method?
2. Clear replication procedure
3. Video demo of the issue
4. If possible, please reproduce the issue in the above provided sample and share.
Regards,
Ragavee U S.