Canceling report run via Microsoft.Reporting.WebForms ReportViewer

Question

Is it programmatically possible to cancel a long-running report that has been started using the web forms ReportViewer control? Documentation of .Reset() method says "Call the Reset method to cancel any current rendering and reset the ReportViewer control to its default state." However if I (for example) put a button on the web form to call reportViewer1.Reset() on postback, the line never actually gets hit until the report is finished. Viewing trace.axd, I can see that the postback hangs between BeginLoadState and EndLoadState until the report finishes.

Answer 1

Hi,

You'll need to be calling the report asynchronously in order to cancel it while it is rendering.

Hope this helps,

Bill