Redirect On Error

[Marcus Kellermann]

Using the Web Report Viewer how can one redirect the client to an error page when there is an error processing the report?

In order to help stem performance issues from users running reports that result in to large of a data set (20,000+ records).  We throw an exception in the reports NeedDatasource event.   However since reports aren't run in the context of the page (their run from the report handler) the exception doesn't bubble up to a level that we can redirect at the server level.

Is there a way of handling the error on the client and redirecting.

Using the message value of the exception I can display a "useful" error message to the user since the report view displays the Exception.Error message.   However i'd prefer to redirect them to a more meaningful page.

If not is there a way to localize the "An error has occurred while processing Report"   Text? 

[Peter]

Hi Marcus Kellermann,

You are correct the HTTP Handler is responsible for serving reports to the web report viewer. Thus you can't redirect the page whenever there is report processing error. Still you can get the users culture in the report's NeedDatasource and localize the error message as shown in the following code snippet:

if(System.Threading.Thread.CurrentThread.CurrentCulture.Name == "bg-BG")
    throw new Exception("Error in Bulgarian");
else
    throw new Exception("Error in English");

Greetings,
Peter
the Telerik team