Thanks for the feedback, I already know that but what I want to avoid is to repeatedly save changes to the remote server when the save changes button is click.
Actually, what I want to achieve is that, I have a form bind to its own RadClientdataSource and two RadGrid also bind to another RadClientDataSource respectively. All Changes should be save to each respective RadClientDataSource (that is locally). Then After completing the forms, there is one save all button (btnSaveAll) when clicked will save all the ClientDataSources to the remote server.
The reason been that, due to poor internet connection I want to give the user flexibility to work on the browser then save the data to the remote when internet connection is established.