Syntax-highlighting textbox for Winforms, ASP.NET, WPF

Question

I\'m looking for a syntax-highlighting Textbox component, preferably free, with source, and capable of being used in Winforms, ASP.NET and WPF alike. Also, it should support not

Answer 1

I'm with you marc: I'd love to see an extensible syntax highlighting framework that could generate a tokenized "document" object which could then be displayed via controls for each display framework. This way the parser/tokenizer could be written once!

The best I can say is that this thread suggests that ActiProSoftware is working on a WPF control for their syntax highlighter.