从同一类的其他实例访问私人领域 [英] Private field accessible from another instance of the same class

问题描述

我不明白的following..I一直以为我只能从该领域在声明的类访问私有字段但是，在这种情况下，我能够访问它。

 堂课
 {
名单，LT;客户端> ListOfClients =新的List<客户端>（）; 
 
公共无效IterateClients（动作<客户端>动作）
 {
 
} 
} 
 
类客户端
 {
私人诠释A; 
 
会议区; 
 
公共无效的SendData（）
 {
 area.IterateClients（委托（客户端C）
 {
 CA = 5; //这是怎么来的？访问
}）; 
} 
} 
  

解决方案

从技术上这并不是说的访问私有会话类 A 变量，在创建它的委托功能送出数据（） 做这个。有与没有问题。把它看成是 IterateClients 距离调用方法的客户端类，方法可访问 A 变量，因为它是在同一类。

I do not get the following..I always thought I can access private fields only from class which the field was declared in. However in this case I am able to access it:

class Session
{
    List<client> ListOfClients = new List<client>();

    public void IterateClients(Action<client> action)
    {

    }
}

class client
{
    private int A;

    Session area;

    public void SendData()
    {
        area.IterateClients(delegate(client c)
        {
            c.A = 5; //how come this is accessible?
        });
    }
}

解决方案

Technically it's not Session class that's accessing private A variable, it's delegate function created in SendData() that does this. There is no problem with that. Think of it as IterateClients is just calling method from client class, which method can access A variable since it is on the same class.

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