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The Old ASP.NET Webforms ReportViewer Does Not Display Reports after Refresh


Product Progress® Telerik® Reporting
Version Q2 2012 and later
Report Viewers Legacy ASP.NET WebForms Viewer


The described scenario and suggested solution relate to the legacy ASP.NET WebForms ReportViewer. It is recommended that you migrate to the HTML5 ReportViewer.

The old ASP.NET WebForms ReportViewer does not display reports after refresh.


The old ASP.NET WebForms ReportViewer displays content delivered by its Telerik.ReportViewer.axd handler.


To solve the issue, try the following approaches:

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