For review, the complete version of the Default.aspx.cs
for this chapter, including comments, is shown in the following code block:
//using is a directive //System is a name space //name space is a collection of features that our needs to run using System; using System.Collections.Generic; using System.Linq; //public means accessible anywhere //partial means this class is split over multiple files //class is a keyword and think of it as the outermost level of grouping //:System.Web.UI.Page means our page inherits the features of a Page public partial class _Default : System.Web.UI.Page { private static Tuple<double, double, double , double> SummarizeList(List<double> listDoubles) { Tuple<double, double, double, double> summary = Tuple.Create(listDoubles.Sum(), listDoubles.Average(), listDoubles.Max(), listDoubles.Min()); return summary; } protected void Button1_Click(object sender, EventArgs e) { List...