The exportBegin(e, args) Event of the HTML5 Report Viewer

Occurs before exporting the report.

Parameters:

Parameter	Description
e	This is the jQuery.Event object and e.data is respectively jQuery's event.data. e.data.sender is the report viewer that raised the event.
args	An object with properties: format - the document format of the exported report. deviceInfo - the device info that will be used for the export operation. handled - prevent the default render and export operation. Default value: false.

// $(handler) is jQuery's shorthand for $(document).ready(handler)
$(function () {
    $("#reportViewer1").telerik_ReportViewer({
        serviceUrl: "api/reports/",
        reportSource: {
            report: "Telerik.Reporting.Examples.CSharp.Invoice, CSharp.ReportLibrary"
        },
        exportBegin: function(e) { console.log("This event handler will be called before exporting the report in" + arguments.format); }
    });
});

Event Binding

The report viewer currently exposes two ways for binding event handlers to events. You may attach event handlers when you instantiate the report viewer, or after that, using the bind method. For a complete list of binding options during initialization please check Report Viewer Initialization. For a complete list of all event names exposed through telerikReportViewer.Events please check telerikReportViewer Namespace, Events.