Telerik RadPanelBar has a rich design-time support, allowing you to add/remove/edit items and see the changes reflected immediately.
To build a panelbar with the designer:
- Drag an instance of Telerik RadPanelBar from the toolbox onto the webform.
- Right-click the instance, and from the context panelbar, select the Build RadPanelBar command.

This will pop up RadPanelBar Builder, shown below.

The RadPanelBar Builder is divided into two panes. The treeview on the left outlines the current structure of the panelbar. The property grid on the right displays the properties of the currently selected panelbar item.
The Add root button adds a level 1 item. The Add child button adds a child item to the currently selected item in the treeview. The Remove button removes the selected item as well as all its child items.
Click OK to save your changes; click Cancel to discard them.
See Also