如何在C＃中检索嵌套字典中最近添加的密钥 [英] How to retreive recently added key in nested dictionary in C#

问题描述

我的Storage类中有一个嵌套字典为



private static Dictionary< Guid，Dictionary< string，object>>商店{get;设置;}



我有另一个名为Handler.cs的类，其中我在存储类的静态字段中为GUID键添加值为

I have a nested dictionary in my Storage class as

private static Dictionary<Guid, Dictionary<string, object>> Store {get; set;}

I have another class named Handler.cs in which I add value to GUID key in static field of Storage class as

Guid clientId = Guid.NewGuid();
Session.SessionStore.Add(clientId, new Dictionary<string, object>());

我有另一个名为Executor.cs的类，其中我在Storage.cs类中调用add函数，根据Handler.cs中添加的GUID将值添加到Storage类中静态字段的子字典中

I have another class named Executor.cs in which I call add function in Storage.cs class to add values to sub dictionary of static field in Storage class based on GUID added in Handler.cs as

public Session sessionObject;
public void saveSession(HttpListenerContext contxt)
{
this.Storage.Add("Person", objPerson);
}

在Storage.cs我有功能添加为

In Storage.cs I have function Add as

public void Add(string key,object value)
        {
            
            //foreach (var item in SessionStore.Keys)
           // {
               
               // SessionStore[item].Add(key, value);
           // }
        }

但是在我的添加函数中，我只能传递子字典的键和值。我已经在Handler.cs中添加了GUID键。所以从字典列表中我应该如何找到最近添加的GUId？



我尝试过的事情：



我为GUID添加了值，并希望为最近添加的Guid

But in my add function I can pass only key and value of sub dictionary. I have already added the GUID key in Handler.cs. So from the dictionary list how should I find the recently added GUId?

What I have tried:

I added value to GUID and want to add sub dictionary values for the recently added Guid

推荐答案

>添加子字典值。所以从字典列表中我应该如何找到最近添加的GUId？

这将是 Store.Keys 中的最后一个条目。



话虽如此，我不建议记住最近添加的 Guid 密钥，因为它引入了不必要的限制如何商店必须使用。 相反，make Storage.Add（）明确接受 Guid 键。



/ ravi

> So from the dictionary list how should I find the recently added GUId?
This will be the last entry in Store.Keys.

That being said, I don't recommend "remembering" the most recently added Guid key as it introduces an unnecessary restriction in how Store must be used.  Instead, make Storage.Add() explicitly accept the Guid key.

/ravi

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