在C＃3.0自动属性和公共领域之间的区别 [英] Difference between Automatic Properties and public field in C# 3.0

问题描述

我不明白为什么自动实现的属性的语言特性存在于C＃3.0。

这是使差异，当你说什么

 公共字符串名字; 
  

比

 公共字符串名字{获得;组; } 
  

解决方案

由于它们在产生IL代码的实现方式不同（与机器语言）。的自动属性仍暴露为一个公共的getter和setter，而公共领域就是这样 - 一个字段。

因此​​，实施自动属性允许您在一些日后可以更改任何一个getter或setter的内部行为（如添加一个验证器），而无需重新编译或重新编码=使用它......

的任何从属类

I failed to understand why auto implemented property language feature exist in C# 3.0.

What the difference it is making when you say

public string FirstName;

than

public string FirstName { get; set; }

解决方案

Because they are implemented differently in the resulting IL code (and machine language). An Automatic property is still exposed as a public getter and setter, whereas a public field is just that - a single field..

Thus, implementing an auto property allows you at some later date to change the internal behavior of either the getter or setter (like adding a validator) without recompiling or re=coding any dependant classes that use it...

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