This example shows how to use the report viewer events. Some viewer actions have events to which you can subscribe. For example, print action, begin of the export, design report:

<script type="text/javascript">
	// Enable the design button
	var options = new Stimulsoft.Viewer.StiViewerOptions();
	options.toolbar.showDesignButton = true;

	// Create the report viewer
	var viewer = new Stimulsoft.Viewer.StiViewer(options, "StiViewer", false);

	// Assign the onGetReportData event function
	viewer.onBeginProcessData = function (args) {
		var ds = new Stimulsoft.System.Data.DataSet("Demo");
		ds.readJsonFile("../reports/Demo.json");
		args.report.regData("Demo", "Demo", ds);
	}

	// Assign the onPrintReport event function
	viewer.onPrintReport = function (args) {

	}

	// Assign the onBeginExportReport event function
	viewer.onBeginExportReport = function (args) {
		switch (args.format) {
			case "Html":
				args.settings.zoom = 2;  // Set HTML zoom factor to 200%
				break;
		}
	}

	// Assign the onReportDesign event function
	viewer.onDesignReport = function (args) {
		alert("Design button presed.");
	}

	// Create a new report instance
	var report = new Stimulsoft.Report.StiReport();
	// Load report from url
	report.loadFile("../reports/SimpleList.mrt");
	// Assign report to the viewer, the report will be built automatically after rendering the viewer
	viewer.report = report;

	// Show the report viewer in the 'content' element
	viewer.renderHtml("content");
</script>

На скриншоте ниже Вы можете увидеть результат выполнения данного кода: