.NET 可以转换“是"吗?&“不"没有 If 的布尔值? [英] Can .NET convert "Yes" & "No" to boolean without If?

问题描述

你会认为会有一种使用 DirectCast、TryCast、CType 等的方法，但它们似乎都被它窒息了，例如:

You would think there would be a way using DirectCast, TryCast, CType etc but all of them seem to choke on it e.g.:

CType("Yes", Boolean)

你得到:

System.InvalidCastException -从字符串是"转换为类型布尔值"无效.

System.InvalidCastException - Conversion from string "Yes" to type 'Boolean' is not valid.

推荐答案

如果你仔细想想，yes"不能转换为 bool，因为它是一个语言和上下文特定的字符串.

If you think about it, "yes" cannot be converted to bool because it is a language and context specific string.

是"不是真实的同义词(尤其是当你的妻子这么说时......！).对于这样的事情，您需要自己进行转换；yes"表示真"，mmmm yeeessss"表示半真半假，也许"，等等.

"Yes" is not synonymous with true (especially when your wife says it...!). For things like that you need to convert it yourself; "yes" means "true", "mmmm yeeessss" means "half true, half false, maybe", etc.

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