ASPxClientGantt.CallbackError Event

Fires on the client if any server error occurs during server-side processing of a callback sent by the ASPxClientGantt.

Declaration

CallbackError: ASPxClientEvent<ASPxClientCallbackErrorEventHandler<ASPxClientGantt>>

Event Data

The CallbackError event's data class is ASPxClientCallbackErrorEventArgs. The following properties provide information specific to this event:

Property	Description
handled	Gets or sets whether the event is handled and the default error handling actions are not required.
message	Gets the error message that describes the server error that occurred.

Remarks

Use the CallbackError event to respond to a server error occurring as a result of a callback processed on the server side. For example, you can display an explanatory text or an image related to the error.

Web Forms:

ASPX

<dx:ASPxGantt ID="Gantt" ClientInstanceName="clientGantt" >
    <ClientSideEvents CallbackError="function(s, e) {
        // your code
    } />
</dx:ASPxGantt>

MVC:

Razor C#

@Html.DevExpress().Gantt(settings => {
    settings.Name = "gantt";
    settings.ClientSideEvents.CallbackError = "function (s, e) { // your code }";
    ...
}).Bind(
    GanttDataProvider.Tasks, GanttDataProvider.Dependencies, 
    GanttDataProvider.Resources, GanttDataProvider.ResourceAssignments
).GetHtml()

Concept

• Handle Callback Exceptions on the Client