This sample project shows how to localize the viewer. To select localization, it is enough to set the path to the localization XML file as the value of the 
Localization option.
First, you need to add the 
StiNetCoreViewer component to the view page. Also you need to pass the 
StiNetCoreViewerOptions object to the constructor. In the options you should set two actions - 
GetReport and 
ViewerEvent, which are located in the Actions options group. To localize the viewer, you should set the 
Localization option, the viewer component will automatically load and apply the specified localization:
@using Stimulsoft.Report.Mvc;
...
@Html.StiNetCoreViewer(new StiNetCoreViewerOptions()
{
	Actions =
	{
		GetReport = "GetReport",
		ViewerEvent = "ViewerEvent"
	},
	
	Localization = "Localization/de.xml"
})
The 
OnPostGetReport action loads the report and returns the answer to the client part of the viewer using the 
GetReportResult() static method. In the parameters of this method, the report object should be passed. For example, load the rendered report file:
public IActionResult OnPostGetReport()
{
	StiReport report = new StiReport();
	report.LoadDocument(StiNetCoreHelper.MapPath(this, "Reports/SimpleList.mdc"));
            
	return StiNetCoreViewer.GetReportResult(this, report);
}
The 
ViewerEvent action handles all the viewer events (switching pages, zooming, printing, exporting, interactivity, etc.) and returns the answer to the client using the 
ViewerEventResult() static method:
 public IActionResult OnGetViewerEvent()
{
	return StiNetCoreViewer.ViewerEventResult(this);
}
public IActionResult OnPostViewerEvent()
{
	return StiNetCoreViewer.ViewerEventResult(this);
}
In the screenshot below you can see the result of the sample code: