Server-side Selecting Multiple Rows
RadGrid allows multiple rows to be selected at the same time when the AllowMultiRowSelectionproperty is set to trueWhen multi-row selection is enabled, you can still use the approaches described in Selecting a row with a checkbox (server-side) and Selecting a row with a select button (server-side) topics.
The selected rows can be accessed using the grid's SelectedItems collection. In addition, you can handle the grid's SelectedIndexChanged server event to detect when an item's selection changes and perform additional operations if needed.
For a live example of multi-row selection that is handled server-side, see Server-side row selection.