C# 4 and .NET 4

linQ overview ❘ 269
}
}
}
public string ToString(string format)
{
return ToString(format, null);
}
public string ToString(string format, IFormatProvider formatProvider)
{
switch (format)
{
case null:
case "N":
return ToString();
case "F":
return FirstName;
case "L":
return LastName;
case "C":
return Country;
case "S":
return Starts.ToString();
case "W":
return Wins.ToString();
case "A":
return String.Format("{0} {1}, {2}; starts: {3}, wins: {4}",
FirstName, LastName, Country, Starts, Wins);
default:
throw new FormatException(String.Format(
"Format {0} not supported", format));
}
}
code snippet DataLib/Racer.cs
A second entity class is Team. This class just contains the name and an array of years for constructor
championships.
[Serializable]
public class Team
{
public Team(string name, params int[] years)
{
this.Name = name;
this.Years = years;
}
public string Name { get; private set; }
public int[] Years { get; private set; }
}
code snippet DataLib/Team.cs
The class Formula1 returns a list of racers in the method GetChampions(). The list is filled with all
Formula-1 champions from the years 1950 to 2008:
using System.Collections.Generic;
namespace Wrox.ProCSharp.LINQ
{
public static class Formula1
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