How can i sync offline database and online database

Question

How can i sync offline database (SQLite) and online database (MySQL) using C#?

 

  Basically i want to sync my online database (web server's database) with my local database (which on Hard-disc )database and vice-versa. If i add a new data on my online database it automatically and on my local database (when click sync button as well as if internet connection available)