From Quantum Whale:
Editor.NET is an advanced code editor allowing integration of a highly flexible edit control in your .NET applications. It has almost all the features that can be found in the Visual Studio.NET code Editor, including customizable syntax highlighting, code outlining, code completion, unlimited undo/redo, bookmarks, word wrap, drag-n-drop, search/replace, and displaying gutter/margin/line numbers.
What's new in this version:
- User margin to display additional information for separate lines
- Content dividers to separate text in the editor
- Ability to display border around selection
- Code snippets for choosing predefined templates from popup list