Our Data Dynamics Reports product includes a End User Designer Control for Windows Forms that you can drag & Drop onto a Windows Forms and provide a full-featured report designer to your end users. Visit the Data Dynamics Reports Product Page, select the Features tab and look at the heading "Designer control" near the bottom of the features page.
Although not the main focus of this screencast, it does show a bit about the End User Designer control.
Finally, if you download the free evaluation (click Download the main product page) select Sample Gallery from the Start Menu (under Data Dynamics). The Sample Gallery form that pops up is a detailed demonstration of using our End User Designer control.
Scott Willeke
Data Dynamics / GrapeCity