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WebDocumentViewerExceptionHandler Class

Enables you to handle server-side errors in the Web Document Viewer.

Namespace: DevExpress.XtraReports.Web.WebDocumentViewer

Assembly: DevExpress.XtraReports.v19.1.Web.dll

Declaration

public class WebDocumentViewerExceptionHandler :
    ExceptionHandler,
    IWebDocumentViewerExceptionHandler,
    IExceptionHandler
Public Class WebDocumentViewerExceptionHandler
    Inherits ExceptionHandler
    Implements IWebDocumentViewerExceptionHandler,
               IExceptionHandler

Remarks

The WebDocumentViewerExceptionHandler class provides the following methods:

The code snippet below demonstrates how to create a descendant from this class and override the GetUnknownExceptionMessage method to return an actual exception message.

using System;
using DevExpress.XtraReports.Web.WebDocumentViewer;

public class CustomWebDocumentViewerExceptionHandler : WebDocumentViewerExceptionHandler {
    public override string GetUnknownExceptionMessage(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, CustomWebDocumentViewerExceptionHandler>();
}

See the following topics for more information:

Inheritance

Object
ExceptionHandler
WebDocumentViewerExceptionHandler
See Also