C＃ - 从其他类访问私有方法 [英] C# - Access to private method from other class

问题描述

Hello，



在'Worker'类中，'del'变量最终访问私有方法在'Program'类中（将参数发送到Program类中的Worker_WorkPerformed方法，但Worker_WorkPerformed是私有的）。但根据合同，私有方法只能从
自己的类访问。不是其他人。

如何访问私有方法？谢谢

使用System; 
 
 
 namespace DelegatesAndEvents 
 {
 public class WorkPerformedEventsArgs：EventArgs 
 {
 public WorkPerformedEventsArgs（int hours，WorkType workType）
 {
小时=小时; 
 WorkType = workType; 
} 
 public int Hours {get;组; } 
 public WorkType WorkType {set;得到; } 
} 
} 

使用系统; 
 
 
 namespace DelegatesAndEvents 
 {
 // public delegate int WorkdPerformedHandler（object o，WorkPerformedEventsArgs e）; 
 
 
公共类工人
 {
公共事件EventHandler< WorkPerformedEventsArgs>工作完成; 
公共事件EventHandler WorkCompleted; 
 
 
 public void DoWork（int hours，WorkType workType）
 {
 for（int i = 0; i< hours; i ++）
 { 
 OnWorkPerfomed（i + 1，WorkType.Coffee）; 
} 
 OnWorkCompleted（）; 
} 
 protected virtual void OnWorkPerfomed（int hours，WorkType workType）
 {
 var del = WorkPerformed as EventHandler< WorkPerformedEventsArgs> ;; 
 if（del！= null）
 {
 del（this，new WorkPerformedEventsArgs（hours，workType））; 
} 
} 
 protected virtual void OnWorkCompleted（）
 {
 var del = WorkCompleted as EventHandler; 
 if（del！= null）
 {
 del（this，EventArgs.Empty）; 
} 
} 
} 
} 

 
使用System; 
 
 
名称空间DelegatesAndEvents 
 {
 public enum WorkType 
 {
 GoToMeeting，
 Coffee，
 Break 
} 
 class程序
 {
 static void Main（string [] args）
 {
 worker worker = new Worker（）; 
 worker.WorkPerformed + = Worker_WorkPerformed; 
 
 worker.DoWork（10，WorkType.GoToMeeting）; 
} 
 
 
 private static void Worker_WorkPerformed（object sender，WorkPerformedEventsArgs e）
 {
 Console.WriteLine（$" Hour is {e.Hours }  -  WOrk Type是{e.WorkType}"）; 
} 
} 
} 

工人阶级：

解决方案

如何访问私有方法？谢谢

通过在类中公开访问类中私有方法的公共方法是如何做到的。的

Hello,

In 'Worker' class, 'del' variable eventually access to private method in 'Program' class ( send parameter to Worker_WorkPerformed method in Program class but Worker_WorkPerformed is private). but According to the contract, private method can only access from own class. Not others.

How to access private method? Thanks

using System;


namespace DelegatesAndEvents
{
    public class WorkPerformedEventsArgs : EventArgs
    {
        public WorkPerformedEventsArgs(int hours , WorkType workType)
        {
            Hours = hours;
            WorkType = workType;
        }
        public int Hours { get; set; }
        public WorkType WorkType { set; get; }
    }
}

using System;


namespace DelegatesAndEvents
{
    //public delegate int WorkdPerformedHandler(object o , WorkPerformedEventsArgs e);


    public class Worker
    {
        public event EventHandler<WorkPerformedEventsArgs> WorkPerformed;
        public event EventHandler WorkCompleted;


        public void DoWork(int hours , WorkType workType)
        {
            for (int i = 0; i < hours; i++)
            {
                OnWorkPerfomed(i + 1, WorkType.Coffee);
            }
            OnWorkCompleted();
        }
        protected virtual void OnWorkPerfomed(int hours , WorkType workType)
        {
            var del = WorkPerformed as EventHandler<WorkPerformedEventsArgs>;
            if (del != null)
            {
                del(this, new WorkPerformedEventsArgs(hours,workType));
            }
        }
        protected virtual void OnWorkCompleted()
        {
            var del = WorkCompleted as EventHandler;
            if (del != null)
            {
                del(this, EventArgs.Empty);
            }
        }
    }
}

using System;


namespace DelegatesAndEvents
{
    public enum WorkType
    {
        GoToMeeting,
        Coffee,
        Break
    }
    class Program 
    {
        static void Main(string[] args)
        {
            Worker worker = new Worker();
            worker.WorkPerformed += Worker_WorkPerformed;
            
            worker.DoWork(10, WorkType.GoToMeeting);
        }


        private static void Worker_WorkPerformed(object sender, WorkPerformedEventsArgs e)
        {
            Console.WriteLine($"Hour is {e.Hours} - WOrk Type is {e.WorkType}");
        }
    }
}

Worker Class:

解决方案

How to access private method? Thanks

By exposing a public method in the class that access the private method in the class is how you can do it.

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