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WebForms Reports Do Not Display Data or Applied Changes in Events
Environment
| Product | Progress® Telerik® Reporting |
| Version | Q2 2012 and later |
| Report Viewers | Legacy ASP.NET WebForms Viewer |
Description
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 legacy ASP.NET WebForms ReportViewer report does not display data or changes that are made in the events.
Cause
The legacy ASP.NET WebForms ReportViewer depends on the ASP.NET Session.
Solution
Depending on the session state mode of the application, the report may require additional settings as described in the Design Considerations for Out-proc Session State article.