There is a bug when cancelling the edit of a row that was loaded through virtual scrolling from a remote datasource, the row disappears from the grid/datasource. Telerik confirmed they can reproduce the bug but due to the specificity of the virtualization process currently do not plan to provide a solution for this. Their recommendation is that if you need editing with a remote datasource to disable virtual scrolling and enable paging instead. Vote for this to have the bug fixed.
The bug was reported by my colleague. ID 628640 and Telerik confirmed they can reproduce the bug. But since Telerik explained they do not have immediate plans to fix the bug, it was Telerik who suggested we add the suggestion here to gauge the popularity of the idea and if it proves to be popular Telerik may consider the bug fix in a future release. So it does not seem right to decline the idea now.
Hi Remco, Bugs can be reported via the Kendo UI Forums or by creating a ticket from your account at Kendoui.com Thanks, Brandon