ASPxClientGlobalEvents.BeginCallback Event

Occurs when a callback for server-side processing is initiated by any DevExpress control.


BeginCallback: ASPxClientEvent<ASPxClientGlobalBeginCallbackEventHandler<ASPxClientGlobalEvents>>

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 forced a callback to occur. Inherited from ASPxClientBeginCallbackEventArgs.
control Gets an object that initiated a callback.


The BeginCallback event together with the ASPxClientGlobalEvents.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.


<dx:ASPxGlobalEvents ID="ASPxGlobalEvents1" runat="server">
       BeginCallback="function(s, e) {
        alert('BeginCallback ' +;
    }" CallbackError="function(s, e) {
        alert('CallbackError ' +;
    }" EndCallback="function(s, e) {
        alert('EndCallback ' +;
    }" />
See Also