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Blank report in ASP.NET ReportViewer on iPad/iPhone

Environment

Product Progress® Telerik® Reporting
Report Viewer ASP.NET WebForms Report Viewer
OS iOS

This article relates to the Legacy ASP.NET Report Viewer.

Description

The ASP.NET ReportViewer is empty when trying to show a report on iPad or iPhone device.

Possible Cause

The reason reports may not be displayed on iPad is because the document is rendered within an iframe and the page uses HTML5 DOCTYPE.

Solution

Using an older DOCTYPE declaration such as HTML4.1 resolves the issue with the ASP.NET ReportViewer.

Notes

The HTML5 Report Viewer introduced in Telerik Reporting Q3 2013 also provides solution for the issue. The viewer uses HTML5/JS/CSS3 technologies and is HTML5 browsers compliant.

See Also

Migrate to the HTML5 Viewer from the old ASP.NET WebForms ReportViewer control

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