IExceptionHandler Interface
A base interface to handle server-side errors in the web reporting controls.
Namespace: DevExpress.XtraReports.Web.ClientControls
Assembly: DevExpress.XtraReports.v24.1.Web.dll
NuGet Package: DevExpress.Web.Reporting.Common
Declaration
Remarks
The following interfaces are inherited from the IExceptionHandler interface:
This base interface provides 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.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