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 handler receives an argument of the ASPxClientGlobalBeginCallbackEventArgs type. The following properties provide information specific to this event.

Property Description
command Gets a command name that identifies which client action forced a callback to occur.
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