WebDocumentViewerExceptionHandler.GetDocumentCreationExceptionMessage(DocumentCreationException) Method
Enables you to handle errors related to the document creation process.
Namespace: DevExpress.XtraReports.Web.WebDocumentViewer
Assembly: DevExpress.XtraReports.v24.1.Web.dll
NuGet Package: DevExpress.Web.Reporting.Common
Declaration
Parameters
Name | Type | Description |
---|---|---|
ex | DocumentCreationException | 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 GetDocumentCreationExceptionMessage method is called whenever an error occurs while the document creation is in process (for instance, errors in the BeforePrint or AfterPrint events of a report or specific control).
The code snippet below demonstrates how to create a descendant from the WebDocumentViewerExceptionHandler class and override the GetDocumentCreationExceptionMessage method to return a custom message.
using DevExpress.XtraReports.Web.WebDocumentViewer;
public class CustomWebDocumentViewerExceptionHandler : WebDocumentViewerExceptionHandler {
public override string GetDocumentCreationExceptionMessage(DocumentCreationException ex) {
return "An exception occured while document creation.";
}
}
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:
- 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)
Related GitHub Examples
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the GetDocumentCreationExceptionMessage(DocumentCreationException) method.
Note
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