Assembly: Microsoft.ReportViewer.WebForms (in microsoft.reportviewer.webforms.dll)
|AlwaysAsynchronous||Always perform asynchronous postbacks.|
|AlwaysSynchronous||Always perform synchronous postbacks.|
|SynchronousOnDrillthrough||Perform synchronous postbacks on drillthrough actions, and asynchronous postbacks on other actions. In this mode, both clicking a drillthrough report and clicking the Back to Parent button will cause synchronous postbacks. For more information on drillthrough reports, see Adding Drillthrough Reports in SQL Server Books Online.|
This enumeration is referenced by the InteractivityPostBackMode property in ReportViewer.
If you want the ReportViewer control to perform URL redirection on drillthrough actions, use SynchronousOnDrillthrough. URL redirection is not a supported response to asynchronous postbacks. For more information on synchronous and asynchronous postbacks, see Partial-Page Rendering Overview.