How to share post to social network sites after save data?

Question

Friends, I need to know how to share posts on social network sites after saving data to database table like wordpress sharing using asp.net c# without Plugin/API.

I have done by direct url but i need via automatic after save data to database.

eg:

<a href="http://www.reddit.com/submit?url=https://www.codeproject.com/">Share link</a>

But i need to know how to do without plugin or via Url.