Bug report

When the Spreadsheet is bound to a DataSource upon making multiple selections in the Spreadsheet and deleting the selected ranges a JavaScript error is thrown: "Unsupported for multiple ranges." The selected cells are deleted on the UI, but the DataSource change event is not triggered.

Reproduction of the problem

1. Run the demo on DataSource binding
2. Make random multiple selections
3. Delete selection using the Delete key

Current behavior

A JavaScript error is thrown: "Unsupported for multiple ranges." The selected cells are deleted on the UI, but the DataSource change event is not triggered.

Expected/desired behavior

Upon an attempt to delete multiple selections a popup should be displayed with a warning that this operation is not supported, similar to trying Copy/Paste multiple selections.

Environment

• Kendo UI version: 2020.1.219
• Browser: [all]