IWebDocumentViewerExceptionHandler Interface
Enables you to handle server-side errors in the Web Document Viewer.
Namespace: DevExpress.XtraReports.Web.WebDocumentViewer
Assembly: DevExpress.XtraReports.v24.2.Web.dll
NuGet Package: DevExpress.Web.Reporting.Common
Declaration
Remarks
This interface is inherited from the base IExceptionHandler interface and exposes the GetExceptionMessage method that is called when any server-side error occurs.
The following code snippet demonstrates how to implement this method and return an actual exception message:
using System;
using DevExpress.XtraReports.Web.WebDocumentViewer;
public class CustomExceptionHandler : IWebDocumentViewerExceptionHandler {
public string GetExceptionMessage(Exception ex) {
return ex.Message;
}
}
To register the implemented exception handler, use the static DefaultWebDocumentViewerContainer.Register method at the application’s startup as shown below:
void Application_Start(object sender, EventArgs e) {
\\ ...
DevExpress.XtraReports.Web.WebDocumentViewer.DefaultWebDocumentViewerContainer.
Register<IWebDocumentViewerExceptionHandler, CustomExceptionHandler>();
}
The WebDocumentViewerExceptionHandler class is the predefined implementation of the IWebDocumentViewerExceptionHandler interface.
See the following topics for more information:
- Handle Server-Side Errors in the Document Viewer (ASP.NET Web Forms)
- Handle Server-Side Errors in the Document Viewer (ASP.NET MVC)
- Handle Server-Side Errors in the Document Viewer (ASP.NET Core)