检查两个引用是否指向VS2k8调试器中的同一对象 [英] Check if two references are pointing to the same object in the VS2k8 debugger

问题描述

在过去的几天里，我花了大约6个小时来寻找一个错误，该错误是由两个变量引用同一个对象引起的，而我需要的是让第二个变量拥有自己的第一个副本:

I''ve lost about 6 hours over the last few days tracking down a bug that was caused by having two variables reference the same object when what I needed was to have the second one have its own copy of the first:

    MyObjectType foo = new MyObjectType()

// lots of intervening code   

    MyObjectType bar = foo;  //should have been = foo.Clone()

在C/C ++中，这种错误很容易在调试器中确认，因为我可以检查存储的两个指针的地址.不过，我从未能够找到.net的简单等效项.

In C/C++ this sort of error was easy to confirm in the debugger since I could just check was address the two pointers stored. I''ve never been able to find a simple equivalent for .net though; am I blind or is this an oversight on MS''s part?

推荐答案

如果要检查两个变量是否指向同一对象实例，请使用 Object.ReferenceEquals() [

If you want to check for if two variables point to the same object instance, use Object.ReferenceEquals()[^].

.Equals(object ...)方法将满足您的需求:

The .Equals(object ...) method will do what you need:

foo.Equals(bar)

它将参考与参考类型进行比较.请参阅: http://msdn.microsoft.com/en-us/library/bsc2ak47.aspx [ ^ ]了解更多信息.

[自行编辑]:决定开始以可识别的英语语言进行写作，这样，看着我的答案的人实际上就可以阅读它了:-).

It compares the references for reference types. See: http://msdn.microsoft.com/en-us/library/bsc2ak47.aspx[^] for more info.

[Self-edit]: Decided to start writing in a language that is recognizably English, that way people looking at my answer might actually be able to read it :-).

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