异常当期待空值时抛出？ [英] Exception to throw when expecting a null value?

问题描述

如果我期待一个空值并获得一个定义的值（在一个属性的getter内），并且想要抛出一个异常，那么在csharp中执行此操作的正确方法是什么？在这种情况下，是否有任何定义是有意义的？

If I am expecting a null value and get a defined value (within a getter of a property) and want to throw an exception, what would be the proper way to do this in csharp? Is there anything defined already that makes sense in this situation?

推荐答案

我的猜测是：

throw new
    ArgumentException("Parameter was expected to be null, value was provided.");

ArgumentOutOfRangeException 也可以正常工作，但通常当有一个明确的范围而不是null而不是null时使用。

ArgumentOutOfRangeException might also work, but is typically used when there is a well defined range rather than null vs. not null.

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