ASP.NET專題實務 WebForm + MVC線上教學影片 -- MIS2000Lab.

using System.Collections.Generic;   // List會用到這個命名空間，別忘了加上！

        // Create a list of parts.  Part是您自己定義的資料型態，就是前面的那個類別檔。
        List<Part> parts = new List<Part>();

        // Add parts to the list.   先把您需要的資料，加入List，就能進行排序囉。
        parts.Add(new Part() { PartName = "regular seat", PartId = 1434 });
        parts.Add(new Part() { PartName= "crank arm", PartId = 1234 });
        parts.Add(new Part() { PartName = "shift lever", PartId = 1634 }); ;
        // Name intentionally left null.
        parts.Add(new Part() {  PartId = 1334 });
        parts.Add(new Part() { PartName = "banana seat", PartId = 1444 });
        parts.Add(new Part() { PartName = "cassette", PartId = 1534 });


        // Write out the parts in the list. This will call the overridden 
        // ToString method in the Part class.
        Console.WriteLine("\nBefore sort:");
        foreach (Part aPart in parts)
        {
            Console.WriteLine(aPart);   // ASP.NET請改成 Response.Write()

        }


        // Call Sort on the list. This will use the 
        // default comparer, which is the Compare method 
        // implemented on Part.
        parts.Sort();


        Console.WriteLine("\nAfter sort by part number:");
        foreach (Part aPart in parts)
        {
            Console.WriteLine(aPart);   // ASP.NET請改成 Response.Write()
        }


        // This shows calling the Sort(Comparison(T) overload using 
        // an anonymous method for the Comparison delegate. 
        // This method treats null as the lesser of two values.
        parts.Sort(delegate(Part x, Part y)
        {
            if (x.PartName == null && y.PartName == null) return 0;
            else if (x.PartName == null) return -1;
            else if (y.PartName == null) return 1;
            else return x.PartName.CompareTo(y.PartName);
        });

        Console.WriteLine("\nAfter sort by name:");
        foreach (Part aPart in parts)
        {
            Console.WriteLine(aPart);   // ASP.NET請改成 Response.Write()

        }

        /*

            Before sort:
            ID: 1434   Name: regular seat
            ID: 1234   Name: crank arm
            ID: 1634   Name: shift lever
            ID: 1334   Name: chain ring
            ID: 1444   Name: banana seat
            ID: 1534   Name: cassette

           After sort by part number:
            ID: 1234   Name: crank arm
            ID: 1334   Name: chain ring
            ID: 1434   Name: regular seat
            ID: 1444   Name: banana seat
            ID: 1534   Name: cassette
            ID: 1634   Name: shift lever

         */