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Report Preview

Updated on Oct 7, 2026

Use the Report Preview settings to choose parameter editor types, enable export options, and upload a page-area background image.

Report Preview Settings

The Report Preview settings page shows the parameter editor choices, the export options checkbox, and the page area background image control.

Parameters Area Options

Choose ListView or ComboBox as the editor type for single-select and multi-select report parameters.

Export Settings

The Allow customizing the export options setting is disabled by default.

To enable it, select the checkbox and then select Save Changes. Report Server then includes rendering-extension settings in the document information it sends to the Report Viewer.

Users can configure available settings in the Export Options dialog before they export a report. Their export-option changes apply only during the current browser session and do not change server-side rendering defaults.

When this setting is cleared, Report Server does not send rendering-extension settings to the viewer. Users can still export reports directly, but they cannot customize device settings in the viewer.

Page Area Options

Upload a PNG, GIF, or JPG image to use as a background in the Telerik Report Viewer page area. Report Server displays the image only when parameter values are missing or invalid.