In Microsoft Visual Web Developer 2010 Express, I can use #region…#endregion to Outline and Hide Code.
Is there a WYSIWYG Text and HTML Editor which support #region…#endregion function?
BTW, http://ckeditor.com/ don’t support it.
And more, how can I create a editor with c# to do it?
Not sure if you mean standalone or within VS, if VS, then you could build one on top of DXCore.