C# 想要创建一个类型为 Dictionary<int, T> 的自定义类
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Want to create a custom class of type Dictionary<int, T>
提问by mrblah
I want to create a custom class that basically wraps a dictionary.
我想创建一个基本上包装字典的自定义类。
I want to add a property to it called Name.
我想向它添加一个名为 Name 的属性。
I tried:
我试过：
public class MyDictionary<int, T> : Dictionary<int, T>
{
public string Name { get; set;}
}
Doesn't seem to be working, any ideas?
似乎不起作用，有什么想法吗？
Update
更新
THe error I'm getting is:
我得到的错误是：
Type parameter declaration must be an identifier not a type
回答by John Saunders
The problem is with your declaration. Your custom class only needs a single type parameter, since the inttype never varies:
问题出在你的声明上。您的自定义类只需要一个类型参数，因为int类型永远不会改变：
public class MyDictionary<T> : Dictionary<int, T>
{
public string Name { get; set; }
}
回答by Vinod Srivastav
If you can wrap the dictionary, then why not this:
如果您可以包装字典，那么为什么不这样做：
public class Context<T>
{
private Dictionary<int, T> dictContext;
public String Name { get; private set; }
public Context (String name)
{
this.Name = name;
dictContext = new Dictionary<int, T>();
}
And you can add all dictionary members:
您可以添加所有字典成员：
public int Count {
get { return dictContext.Count(); }
}
public Dictionary<int, T>.KeyCollection Keys
{
get { return dictContext.Keys; }
}
public Dictionary<int, T>.ValueCollection Values
{
get { return dictContext.Values; }
}
public void Add (int key, T value)
{
dictContext.Add(key, value);
}
public bool Remove (int key)
{
return dictContext.Remove(key);
}
and declare your own
并声明你自己的
public void MyFunction ()
{
//do nothing
}
}
