ASPxClientControlCollection.BeginCallback Event
Occurs when a callback for server-side processing is initiated by any DevExpress control.
Declaration
BeginCallback: ASPxClientEvent<ASPxClientGlobalBeginCallbackEventHandler<ASPxClientControlCollection>>
Event Data
The BeginCallback event's data class is ASPxClientGlobalBeginCallbackEventArgs. The following properties provide information specific to this event:
Property | Description |
---|---|
command | Gets a command name that identifies which client action initiated a callback. Inherited from ASPxClientBeginCallbackEventArgs. |
control | Gets an object that initiated a callback. |
Remarks
The BeginCallback event, together with the ASPxClientControlCollection.EndCallback event, can be used to perform specific client-side actions (for example, to display and hide an explanatory picture) while a callback is being processed on the server side.
ASPxClientControl.GetControlCollection().BeginCallback.AddHandler(function () {
LoadingPanel.Show();
});
See Also