Why can't I add the usercontrl ,CalendarPanel, to toolbox?

[tan tan]

In Step-by-step Tutorial – RadControls for WinForms
I open Telerik_RadControls_for_WinForms_VS_Projects\RealEstate\CS\UserDock\UserDock project
Why can't I add the usercontrl ,CalendarPanel, to toolbox?

[Nikolay]

Hello tan tan,

This UserDockControl descendants are hidden from view by design. The purpose of UserDockControl instances is to be used in DockingManager only, so there is no need for them to reside in the Toolbox.

Please note, however, that the DockingManager control is obsolete and it will be removed in one of our next versions. We will update our Step-by-step Tutorial accordingly. The control that you should use for your docking scenarios is RadDock. For additional information, please refer to the following articles:
http://www.telerik.com/help/winforms/dock_overview.html
http://www.telerik.com/help/winforms/dock_usabilitydockingmanager.html
http://www.telerik.com/help/winforms/dock_objectuserdockformtutorial.html

I hope this helps. If you have additional questions, feel free to contact me.

Sincerely yours,
Nikolay
the Telerik team