奇怪的警告：“已分配但从未使用过它的值”。 [英] Weird warning: "is assigned but its value is never used"

问题描述

为什么在我的C＃代码中会收到以下警告？

已分配专用字段xxxx，但从未使用其值

有问题的属性仅用作用户的标志。实际上，用户可以访问（获取）值 false 或 true 来了解事物的状态。

以下是创建此警告的代码示例：

  class Class1 {
 
 //属性
 private b_myboolean = false; 
 
 //访问者
 public bool B_myboolean 
 {
 get {return b_myboolean;} 
} 
 
 //方法
 //方法中的某处
 b_myboolean = true; 
 
} 
  

类似的操作将返回警告。为什么？我是否必须以其他方式对此 flag 进行编码？

解决方案

您可以禁用此特定警告。 / p>

这里有两个候选对象，它们在未使用字段或未使用其值的情况下发出警告：

警告169：从未使用字段'xxx'
警告414 ：分配了字段 xxx，但从未使用其值

  #pragma warning disable 414 
 
 //属性
 private b_myboolean = false; 
 
 #pragma警告恢复414 
  

我也遇到警告消息。通常，当然不应禁用警告。但是围绕这个领域并不太吸引人。

Why do I get the following warning in my C# code?

the private field xxxx is assigned but its value is never used

The attribute in question is only used as a flag for the user. Indeed the user can access (get) the value false or true to know a state of something.

Here is an example of code which creates this warning:

class Class1 {

    // Attributes
    private b_myboolean = false;

    // Accessors
    public bool B_myboolean
    {
        get{ return b_myboolean;}
    }

     // Methods
     // Somewhere in a method
     b_myboolean =true;

}

Something like that will return the warning. Why? Do I have to code this flag another way?

解决方案

You can disable this specific warning.

Here are two candidates causing warnings with fields not used or its value never used:

Warning 169: The field 'xxx' is never used Warning 414: The field 'xxx' is assigned but its value is never used

#pragma warning disable 414

// Attributes
private b_myboolean = false;

#pragma warning restore 414

I also ran into warning messages. In general one should of course not disable warnings. But surrounding just this field is not too dramatic.

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