Hi k f,
It is possible to "plug" the UI of RadFileExplorer to any back-end system/implementation by subclassing and implementing a custom , as shown in the following demo:
The FileContentProvider abstraction is not new. It has been around for quite some time as it was used to provide an interface for hooking RadEditor's FileBrowser dialogs to MCMS, MOSS, Sitefinity, Amazon S3, a database, etc.
We plan to release more out-of-the-box providers for the RadFileExplorer, but at this point you might need to make your own implementation using the DB provider as a reference.
the Telerik team