в 15:31, 26 мая 2010

2010-05-26T15:31:35Z

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2010-05-26T12:11:39Z

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==implements IComparer==

<source lang="csharp">

using System;
using System.Collections.Generic;

// Create an IComparer<T> for Product objects.
class ProductComparer<T> : IComparer<T> where T : Product {

// Implement the IComparer<T> interface.
public int Compare(T obj1, T obj2) {
return obj1.name.rupareTo(obj2.name);
}

}

class Product {
public string name;
double cost;
int onhand;

public Product(string n, double c, int h) {
name = n;
cost = c;
onhand = h;
}

public override string ToString() {
return
String.Format("{0,-10}Cost: {1,6:C} On hand: {2}",
name, cost, onhand);
}
}

class MainClass {
public static void Main() {
ProductComparer<Product> comp = new ProductComparer<Product>();
List<Product> inv = new List<Product>();

// Add elements to the list
inv.Add(new Product("A", 5.5, 3));
inv.Add(new Product("B", 8.9, 2));
inv.Add(new Product("C", 3.0, 4));
inv.Add(new Product("D", 1.8, 8));

Console.WriteLine("Product list before sorting:");
foreach(Product i in inv) {
Console.WriteLine(" " + i);
}
Console.WriteLine();

// Sort the list using an IComparer.
inv.Sort(comp);

Console.WriteLine("Product list after sorting:");
foreach(Product i in inv) {
Console.WriteLine(" " + i);
}
}
}

</source>

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Csharp/C Sharp by API/System.Collections.Generic/IComparer - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия