C＃中具有多维键的哈希表 [英] Hashtable with MultiDimensional Key in C#

问题描述

我基本上正在寻找一种在c＃中使用二维类型键访问散列表值的方法。

I'm basically looking for a way to access a hashtable value using a two-dimensional typed key in c#.

最终我可以做一些像这个

Eventually I would be able to do something like this

HashTable[1][false] = 5;
int a = HashTable[1][false];
//a = 5

这是我一直在尝试... hasn没有工作

This is what I've been trying...hasn't worked

Hashtable test = new Hashtable();
test.Add(new Dictionary<int, bool>() { { 1, true } }, 555);
Dictionary<int, bool> temp = new Dictionary<int, bool>() {{1, true}};
string testz = test[temp].ToString(); 

推荐答案

我认为一个更好的方法是封装许多字段的多维键转换成一个类/ struct。例如

I think a better approach is to encapsulate the many fields of your multi-dimensional key into a class / struct. For example

struct Key {
  public readonly int Dimension1;
  public readonly bool Dimension2;
  public Key(int p1, bool p2) {
    Dimension1 = p1;
    Dimension2 = p2;
  }
  // Equals and GetHashCode ommitted
}

现在您可以创建并使用正常的HashTable，并将此包装器用作Key。

Now you can create and use a normal HashTable and use this wrapper as a Key.

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