C#3.0 自动属性，为什么不直接访问字段? [英] C#3.0 Automatic properties, why not access the field directly?

问题描述

使用像这样在类的属性中使用 get/set 的新方法:

With the new approach of having the get/set within the attribut of the class like that :

public string FirstName {
        get; set;
    }

为什么不简单地将属性 FirstName 设为 public 而没有访问器?

Why simply not simply put the attribute FirstName public without accessor?

推荐答案

直接访问类内部变量(字段/属性)的两个大问题是:

Two of the big problems with direct access to variable inside class (field/attribute) are:

1) 您不能轻松地针对字段进行数据绑定.

1) You can't easily databind against fields.

2) 如果您从类中公开公共字段，则以后不能将它们更改为属性(例如:向 setter 添加验证逻辑)

2) If you expose public fields from your classes you can't later change them to properties (for example: to add validation logic to the setters)

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