访问类的private或internal成员[转载]

... that access modifiers like public, private and internal are enforced by the language compilers (C#, VB.NET) only and not on IL level?

That means that you can invoke any private or internal member in any class, residing in any assembly, just by using Reflection.

To invoke a private static method Calc from the internal class Calculations in the AssemblyWithPrivateMembers assembly that requires two parameters of type int and returns an int, you can write the following few lines of code.

  Assembly asm = Assembly.Load("AssemblyWithPrivateMembers");

  Type t = asm.GetType("AssemblyWithPrivateMembers.Calculations");

  object[] args = new object[] { 2, 4 };

  BindingFlags bindingFlags = BindingFlags.DeclaredOnly | BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.InvokeMethod;

  int result = (int)(t.InvokeMember("Calc", bindingFlags, null, null, args));

For you as a developer it means that you can use all non-public members you find by browsing the .NET framework base class library (using .NET Reflector for example).

But: Please use this possibility with caution! There will always be a reason why a class or member is not declared public. Additionally you are never sure if the class or member will change in later versions of the assembly.
Form:http://dotnetjunkies.com/WebLog/nenoloje/archive/2004/03/19/9490.aspx

posted @   dudu  阅读(3137)  评论(3编辑  收藏  举报
编辑推荐:
· 一个奇形怪状的面试题:Bean中的CHM要不要加volatile?
· [.NET]调用本地 Deepseek 模型
· 一个费力不讨好的项目,让我损失了近一半的绩效!
· .NET Core 托管堆内存泄露/CPU异常的常见思路
· PostgreSQL 和 SQL Server 在统计信息维护中的关键差异
阅读排行:
· DeepSeek “源神”启动!「GitHub 热点速览」
· 我与微信审核的“相爱相杀”看个人小程序副业
· 微软正式发布.NET 10 Preview 1:开启下一代开发框架新篇章
· C# 集成 DeepSeek 模型实现 AI 私有化(本地部署与 API 调用教程)
· spring官宣接入deepseek,真的太香了~
点击右上角即可分享
微信分享提示