Progress Telerik UI for ASP.NET AJAX
The new RadDrawer component is a server-side Web Forms wrapper over the Drawer for Kendo UI for jQuery. It operates on the client and provides a dismissive or always visible panel. It can act as a sidebar for navigation in your responsive web applications. It can also be used for updating the content of a section of the page. The control renders and operates on the client-side
The Drawer has two modes that are quite different in terms of behavior:
The Drawer can be positioned either on the left or right side using the position configuration option.
With the mini mode enabled the Drawer changes its width instead of closing. It is most commonly used to maintain quick selection available on the side, leaving just the icons.