Open Source Xml Editor

Alon Gubkin picture Alon Gubkin · Nov 7, 2009 · Viewed 30.4k times · Source

I need to write a XML-based markup language. I'd like to provide an open source IDE for it, but I don't want to write it from scratch. So, I'm looking for an open source XML editor, written in C#, with WinForms or WPF UI, which I'll can extend it and add my markup language validation and etc, with the following features:

  • XML Syntax Highlighting like VS
  • Auto Completion
  • Validation

It's license should be that I can edit it and then release it, with the source code.

Are there any things like that?

Thanks.