本文整理匯總了C#中System.Collections.Generic.IEqualityComparer<T>接口的典型用法代碼示例。如果您正苦於以下問題：C# IEqualityComparer<T>接口的具體用法？C# IEqualityComparer<T>怎麽用？C# IEqualityComparer<T>使用的例子？那麽, 這裏精選的接口代碼示例或許可以為您提供幫助。
IEqualityComparer<T>接口屬於System.Collections.Generic命名空間，在下文中一共展示了IEqualityComparer<T>接口的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Main
//引入命名空間
using System;
using System.Collections.Generic;
class Example
{
static void Main()
{
BoxEqualityComparer boxEqC = new BoxEqualityComparer();
var boxes = new Dictionary<Box, string>(boxEqC);
var redBox = new Box(4, 3, 4);
AddBox(boxes, redBox, "red");
var blueBox = new Box(4, 3, 4);
AddBox(boxes, blueBox, "blue");
var greenBox = new Box(3, 4, 3);
AddBox(boxes, greenBox, "green");
Console.WriteLine();
Console.WriteLine("The dictionary contains {0} Box objects.",
boxes.Count);
}
private static void AddBox(Dictionary<Box, String> dict, Box box, String name)
{
try {
dict.Add(box, name);
}
catch (ArgumentException e) {
Console.WriteLine("Unable to add {0}: {1}", box, e.Message);
}
}
}
public class Box
{
public Box(int h, int l, int w)
{
this.Height = h;
this.Length = l;
this.Width = w;
}
public int Height { get; set; }
public int Length { get; set; }
public int Width { get; set; }
public override String ToString()
{
return String.Format("({0}, {1}, {2})", Height, Length, Width);
}
}
class BoxEqualityComparer : IEqualityComparer<Box>
{
public bool Equals(Box b1, Box b2)
{
if (b2 == null && b1 == null)
return true;
else if (b1 == null || b2 == null)
return false;
else if(b1.Height == b2.Height && b1.Length == b2.Length
&& b1.Width == b2.Width)
return true;
else
return false;
}
public int GetHashCode(Box bx)
{
int hCode = bx.Height ^ bx.Length ^ bx.Width;
return hCode.GetHashCode();
}
}輸出：
Unable to add (4, 3, 4): An item with the same key has already been added. The dictionary contains 2 Box objects.