IMPROVE. Expose FocusPrimitive in VSB
The theming mechanism currently does not allow styling different states of disabled controls.
Request for a new control - TimeBar control
Add iPhone style menu like the one available for ASP.Net http://demos.telerik.com/aspnet-ajax/menu/examples/appearance/iphonemenu/defaultcs.aspx#
Implement a System Skinning Mechanism which enabels RadControls for WinForms to look like standard Windows Forms controls and adhere the currently set Windows theme.
Add image editor. For the time being one can use the WPF component with ElementHost: http://www.telerik.com/help/wpf/radimageeditor-overview.html
At the moment one needs to iterate all controls and set the EnableCodedUITests property individually. It would be nice if there is a way this to be done only once affecting all controls.
how to add like dislike button column for each row in radgrid
Allow drag and drop among the data controls such as RadGridView, RadTreeView, RadListView, RadListControl
Make the RadDataFilter (http://www.telerik.com/products/wpf/datafilter.aspx) available for WinForm.
Add the ability to have multiple columns in a TreeView
Our customers are located in Russian and CIS. So, the most common language is Russian. Telerik WinForms controls doesn't provide official Russian localization. Yeah, we can translate it, but it's too hard to contact with translators and support them in translation questions. And, of course, it takes money resources. We'd rather pay more monay for Telerik WinForms UI with official Russian localization than we spend money to translators. Thanks!
The default styles are listed here: http://www.w3schools.com/css/css_link.asp
Currently, the user is not allowed to hover and click the screen tip like in MS Word. It is possible to insert some custom clickable elements. Hence, it would be required to click on it.
Add map control (like the one in our WPF/Silverlight suite) in WinForms
Add support for Coded UI in Visual Studio 2013.
ADD: Circular progress/wating bar control (busy indicator) as in Windows 8