How to Access Private Method Outside the Class in C#

Introduction

This article exlains how to access a private method outside of the class. It is possible using reflection.

Use the following procedure:

Step 1: Create a console application in Visual Studio.

Step 2: Add 2 namespaces 

  1. System
  2. System.Reflection

Step 3: Now create a class and inside that class create one method that will be private as follows:

class PrivateMethodClass  
{  
    //Private Method
    private void PrivateMethod()  
    {  
        Console.WriteLine("\n\n\n\t Hello C-Sharp Corner\n\t This is a Private Method!! :D\n\n");  
    }  
}

Step 4: Now by using the main method call the method as follows: 

class Program  
{  
    static void Main(string[] args)  
    {  
        typeof(PrivateMethodClass).GetMethod("PrivateMethod", BindingFlags.NonPublic | BindingFlags.Instance).Invoke(new PrivateMethodClass(), null);  
    }  
} 

Complete Code: 

using System;  
using System.Reflection;  
  
namespace PrivateMethodAccess  
{  
    class PrivateMethodClass  
    {  
        //Method is declared as private...  
        private void PrivateMethod()  
        {  
            Console.WriteLine("\n\n\n\t Hello C-Sharp Corner\n\t This is a Private Method!! :D\n\n");  
        }  
    }  
  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            typeof(PrivateMethodClass).GetMethod("PrivateMethod", BindingFlags.NonPublic | BindingFlags.Instance).Invoke(new PrivateMethodClass(), null);  
        }  
    }  
}

Output

Output 

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