Currently the only option is to call the Expand/Collapse groups API, which takes noticable time to execute.

Currently, when RenderMode Flat is enabled, RadPropertyGridd uses a custom navigation behavior. The default framework navigation is available only when RenderMode is Hierarchical.

RadPropertyGrid's Description Panel Resizing/Visual Studio like behavior

Three separate modes for RadPropertyGrid's ordering according to its states. OrderIndex should be respected in Sorted state/Grouped state/Both states (default value).

This issue has been reopen as the fix for it turned out to cause other problems. 

It should be a themable editor which allows users to select a file or a directory from the file system using OpenFileDialog, FolderBrowserDialog or directly to type the full path to the file.