.NET 4.0 Generics Beginner's Guide

Time for action – sorting 2D points by their co-ordinates

Let's say we have an array of points in 2D and we want to sort them as per their X co-ordinates. Here is how to do it:

1. Copy the following code snippet as a query to LINQPad:

   System.Drawing.PointF[] points = 
   {
     new System.Drawing.PointF(0, -1),
     new System.Drawing.PointF(-1, 1),
     new System.Drawing.PointF(3, 3)
   };
   
   var sortedPoints = points.Select(c=>new {X = c.X, Y = c.Y}).OrderBy(c => c.X).ToList();
   
   sortedPoints.Dump("Sorted Points");

2. Run the query. You should see the following output:
   

What just happened?

We have a List of points in 2D and we wanted to sort them by their X co-ordinates. We created ...