重载 getter 和 setter 导致 C# 中的堆栈溢出 [英] Overloading getter and setter causes a stack overflow in C#

问题描述

当我尝试覆盖 get 和 set 函数时，我不确定是什么导致了 StackOverflowException.当我只使用默认的 get 和 set 时，它就可以工作了.

I am not sure what is causing the StackOverflowException when I try to overwrite a get and set function. When I just use the default get and set it works.

enum MyEnumType
{
....
}

public MyEnumType data { get; set; }

但是当我尝试添加其他数据时，它会抛出 StackOverflowException:

But when I try to add additional data, it throws a StackOverflowException:

public MyEnumType data
{
  get
  {
    return data;
  }
  set
  {
    data = value;
  }
}

有什么想法吗?当我为 ASP.NET 用户控件属性执行此操作时，没有任何问题.为什么它会导致普通枚举数据类型的 StackOverflowException?

Any ideas? When I do this for ASP.NET user control attributes there isn't any problem. Why is it is causing a StackOverflowException for a normal enum data type?

推荐答案

是的，您没有支持字段...这就是您应该做的:

Yes, you do not have a backing field... this is how you should do it:

private MyEnumType data;

public MyEnumType Data
{
  get
  {
    return data;
  }
  set
  {
    data = value;
  }
}

发生的情况是您引用属性返回自身，这会导致尝试访问其自身值的无限循环.因此，堆栈溢出.

What happens is that you are referring to the property to return itself, which causes an infinite loop of trying to access its own value. Hence, a stack overflow.

在您没有在 get 和 set 方法中添加任何额外逻辑的情况下，您也可以使用自动属性.定义如下:

In your case when you do not add any additional logic in the get and set methods you could use an automatic property as well. This is simply defined like so:

public MyEnumType Data
{
  get;
  set;
}

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