IExceptionHandler.GetExceptionMessage(Exception) Method

Enables you to handle all server-side errors.

Namespace: DevExpress.XtraReports.Web.ClientControls

Assembly: DevExpress.XtraReports.v21.1.Web.dll

Declaration

string GetExceptionMessage(
    Exception ex
)

Parameters

Name Type Description
ex Exception

An exception that occurs on the server side.

Returns

Type Description
String

A string to show in a browser when an error occurs.

Remarks

The GetExceptionMessage method 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.QueryBuilder.Services;
using DevExpress.XtraReports.Web.ReportDesigner.Services;
using DevExpress.XtraReports.Web.WebDocumentViewer;

public class CustomExceptionHandler : IReportDesignerExceptionHandler, 
    IWebDocumentViewerExceptionHandler, IQueryBuilderExceptionHandler {
    public string GetExceptionMessage(Exception ex) {
        return ex.Message;
    }
}

To register the implemented exception handler, use the static methods at the application’s startup as shown below:

void Application_Start(object sender, EventArgs e) {
    // ...
    DevExpress.XtraReports.Web.WebDocumentViewer.DefaultWebDocumentViewerContainer.
        Register<IWebDocumentViewerExceptionHandler, CustomExceptionHandler>();
    DevExpress.XtraReports.Web.ReportDesigner.DefaultReportDesignerContainer.
        Register<IReportDesignerExceptionHandler, CustomExceptionHandler>();
    DevExpress.XtraReports.Web.QueryBuilder.DefaultQueryBuilderContainer.
        Register<IQueryBuilderExceptionHandler, CustomExceptionHandler>();
}
See Also