Thank you for your feedback.
I presume you are talking about the API Reference article
for the event, is that correct? Note that while the API Reference is auto generated, each component in the Telerik UI for WPF suite also has documentation organized by features/functionality. For example, you might find the information in the Keyboard Support article for RadRichTextBox
helpful in this case.
As to the PreviewEditorKeyDown event, similarly to the Preview Events in WPF
, it is a bubbling event that is raised when the focus is in the editor and a key is pressed. It can be used to handle (block) the event or execute an action you want to occur before the action associated with that key.
I hope this helps.
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