Fires when a round trip to the server has been initiated either manually (by a call to the client ASPxClientSpreadsheet.PerformCallback method) or automatically by the ASPxSpreadsheet (an internal service callback).
public event CallbackEventHandlerBase Callback
Public Event Callback As CallbackEventHandlerBase
The Callback event's data class is CallbackEventArgsBase. The following properties provide information specific to this event:
|Parameter||Gets a string that contains specific information (if any) passed from the client side.|
The Callback event allows any desired server-side processing to be performed in response to a call to the client ASPxClientSpreadsheet.PerformCallback method and any resulting required information to be passed to the client for further processing (if needed).
Specific information passed from the client side can be obtained via the CallbackEventArgsBase.Parameter property.