Testing a datafeed subscription key

/Create the XmlDocument...         XmlDocument doc = new XmlDocument();         

doc.Load("http://data.sportsinsights.com/dataservice/dataservice.asmx/LineFeed?LastRequest=0&SubscriberKey=xxxxxxx");         

// *********************         

// ** HISTORICAL DATA **         

//doc.Load(Server.MapPath("~/App_Data/xxxx_datafeed_4122015.txt"));         

// ********************* 

[/code]

How do I test this in Visual Studio?

I have programmed some in ASP.net classic but I am having to ramp up and learn this fairly quickly.

Also what books do you like on learning ASP.net for the newest version?

I would appreciate any and all help.

Thanks,

Kurt