Cannot Render Multiple Columns in Sub-Reports

Environment

Product	Progress® Telerik® Reporting
Version	Q2 2012 and later
Report Viewers	WinForms, WPF, ASP.NET

Description

A multi-column report shows fine in preview, but when used as a sub-report, it shows as a one-column report only.

Cause

The multi-column functionality is intended to be used only in the main report because all report sections (excluding Page sections) are rendered in a column-wise layout.

Solution

This issue occurs by design and it is not intended for multi-column reports to be used as sub-reports.