How to interact sharepoint CMS with visual studio

Question

I am using office365 and I have created a custom list and document library in this.

1. So How can we use this list and library in visual studio for a web application ?

 

2. How can we use sharepoint as CMS to interact with visual studio to create a web application.?

Answer 1

http://geekswithblogs.net/ThorvaldBoe/archive/2015/07/07/how-to-retrieve-list-elements-from-a-sharepoint-online-list.aspx