The ipad connects to the Internet via wifi. That's the way & the only way.
You need to get a wireless router & plug both devices into the router.
There are lots of ways of moving files.
A simple and popular way to copy files and share files amoung your devices.
Using iTunes to transfer files:
Files Connect -- The swiss army knife of remote file connect
iExplorer -- " iExplorer's disk mounting features allow you to use your iPhone, iPod or iPad like a USB flash drive."
Windows File server