title: How to send notification to ajax when database changes in C#? Which one is the best way?
body: <p>i read a little about WebSockets, Comet, WebApi, WCF, etc and want to know the best way to create a server application wich can be read from angular js app, ios app, android app, etc.</p>
  
  <p>Thanks</p>
  
  <p>I want to do something like facebook. The user open the page and let it stopped. After a few seconds (when database updates) the client side upateds by itself. Want to use a server side with C# and client side with angular js. Its possible?</p>