If there is more than one value for a given property in the selection, CurrentEditingStyle won't represent exactly what you need. However, by accessing the caret and getting the current inline where the caret is, you can get the appropriate style. The same can be done by enumerating all inlines that are selected. Have you evaluated using hyperlinks for the files? We support custom hyperlink actions by using the HyperlinkClicked event on RadRichTextBox/RadDocument.
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