Telerik Report Design Issue

[safayet]

Dear Telerik Support Team,

I hope this email finds you well.

We are currently facing an issue with our report rendering in the Telerik Report Viewer. While the report design is implemented perfectly, and the exported PDF displays as intended, the Report Viewer shows significant extra space in certain areas (see attached screenshots for reference).

Here are the details of the issue:

1. Problem Description:

   • In the Telerik Report Viewer, there is a noticeable amount of unnecessary blank space in the red-marked sections.
   • The PDF export of the same report works perfectly without any extra spaces.
   • This issue appears only in the Report Viewer, and it is not related to the report design as it has been validated multiple times.

2. Steps Taken:

   • Verified and adjusted the Page Settings, Margins, and section sizes in the report design.
   • Ensured all sections (Headers, Details, Footers) have the CanShrink property set correctly.
   • Checked for proper anchoring, docking, and layout alignment of report items.
   • Tested in different rendering formats and configurations.
   • Verified that the issue persists across different datasets and Report Viewer configurations.

Despite these measures, the issue persists, specifically in the Telerik Report Viewer.

Could you please assist us in identifying the cause of this discrepancy and suggest a solution to resolve this issue? Please reach out to me if you need further details.

Looking forward to your help on this matter. Thank you for your time and support!

Best regards,
Mohammad  Safayet Hoosain

Senior Software Engineer

Brain Station 23

[Justin]

Hello Safayet,

It sounds like you are experiencing a difference between the rendering behavior of the Report Viewer and the PDF Export. It is hard to say exactly what is causing the behavior without a report to work with; however, I hope I can help by explaining why the behavior can happen.

Let me start by summarizing several articles we have on rendering and paging behavior. Then, I will share the links to the related articles so you can dive deeper if you wish. 

The preview in the report designers and the report viewers use a Logical Page Rendering format. This format is optimized for computer screen-based experiences where pages can be of various lengths. However, some exported formats such as PDF use a Physical Page Rendering format. This is optimized for a book-like or printed experience where pages are a consistent size. 

I hope this helps relieve the possible stress involved with a perceived unexpected behavior. 

Related Articles

• Design Considerations for Report Rendering at a glance - Telerik Reporting
• Rendering and Paging at a glance - Telerik Reporting
• Rendering Behaviors Explained - Telerik Reporting
• Interactive and Print Layouts Explained - Telerik Reporting

Suggestion

To view reports in a physical page rendering format in the report viewer, set the view mode of the viewer to "PRINT_PREVIEW".

I hope the above information helps.

Regards,
Justin
Progress Telerik