In my experience, posts with links are not downvoted if all these conditions are met:
- you paraphrase the content of the linked item (possibly omitting details or examples)
- you identify the author (yourself, MSDN, etc)
- someone could benefit from the answer without reading the linked item at all
- you include information to let the reader decide if clicking the link is worthwhile
For example:
You can use the CircularLabelsStyle custom property for this, for example:
chart1.Series["Series1"]["CircularLabelsStyle"] = "Circular";
I blogged about this last year, with some sample code.
The other extreme, an answer that says nothing more than "here" or "read this" or "please read" and is a link, I will not just downvote but flag as not an answer, and I don't care whether it's the definitive documentation from the owner of the technology, another question on the same SE site, or just a blog you wrote yourself.