非空的字符串初始化为Null [英] Non-Nullable String Initializes as Null

问题描述

我试图理解为什么一个非空的字符串初始化为空，而不是一个空字符串。例如：

I trying to understand why a non-nullable string initializes to null instead of an empty string. For example:

//Property of class foo
public string Address_Notes { get; set; }

//Create instance of foo
foo myFoo = new foo();

//Get value of Address_Notes
var notesValue = myFoo.Address_Notes; //Returns null

我是疯了，认为一个非空的字符串的值应该默认为的String.Empty ？是否有强制这种行为，不是一个自定义的getter其他的标准方式？

Am I crazy to think that a non-nullable string's value should default to String.Empty? Is there a standard way of forcing this behavior, other than a custom getter?

推荐答案

有作为非没有这样的事情-nullable字符串。

There is no such thing as a "non-nullable string".

字符串是引用类型，所以它的默认值是确实是一个空。

String is a reference type, so its default value is indeed a null.

您可以通过在构造函数中为类（富）的值设置为的String.Empty 解决这个问题。

You could get around the issue by setting the value to String.Empty in the constructor for your class (foo).

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