This is actually pretty easy and I had needed to use it on a page where I wanted to use a ToolTip of the contents of an editor which stored the HTML of the content...
Using Regular Expression we can strip off the HTML tags.
1: Dim ContentDataStrippedOfHTML As StringContentDataStrippedOfHTML = Regex.Replace(SourceOriginalDataStringHere, "<(.|\n)*?>", String.Empty)
2: