在 C# 中将字符串转换为布尔值 [英] Convert string to boolean in C#

问题描述

我需要帮助将字符串转换为布尔值:

I need help converting a string to a bool value:

我一直在尝试从 TopMost 中为我的程序获取值(真或假)并将其保存在我的设置中.

I've been trying to get the value (true or false) from the TopMost for my program and save it in my settings.

Settings1.Default["tm"] = ;
Settings1.Default.Save();

我的设置 'tm' 的类型是布尔值(真、假)但我只使用 C# 的时间很短，我不确定如何保存我的 TopMost 是真还是假.

The type for my setting 'tm' is a bool value (true, false) but I've only been using C# for a short amount of time and I'm not sure how to save whether or not my TopMost will be true or false.

在您说使用属性中的那个之前，它是一个用户选项；我希望他们能够选择是 on(true) 还是 off(false)，但将其保存并加载为 bool 值.

Before you say to use the one in properties it's a user option; I want them to be able to choose the option of whether it's on(true) or off(false) but have it save and load as a bool value.

推荐答案

我知道这不是一个理想的问题，但由于 OP 似乎是初学者，我很乐意与他分享一些基本知识... 希望大家理解

I know this is not an ideal question to answer but as the OP seems to be a beginner, I'd love to share some basic knowledge with him... Hope everybody understands

OP，您可以使用以下任何一种方法将字符串转换为 Boolean 类型:

OP, you can convert a string to type Boolean by using any of the methods stated below:

 string sample = "True";
 bool myBool = bool.Parse(sample);

 // Or

 bool myBool = Convert.ToBoolean(sample);

bool.Parse 需要一个参数，在这种情况下是 sample，.ToBoolean 也需要一个参数.

bool.Parse expects one parameter which in this case is sample, .ToBoolean also expects one parameter.

您可以使用 TryParse，它与 Parse 相同，但不会抛出任何异常:)

You can use TryParse which is the same as Parse but it doesn't throw any exception :)

string sample = "false";
Boolean myBool;

if (Boolean.TryParse(sample , out myBool))
{
    // Do Something
}

请注意，您不能将任何类型的字符串转换为 Boolean 类型，因为 Boolean 的值只能是 True 或 >假

Please note that you cannot convert any type of string to type Boolean because the value of a Boolean can only be True or False

希望你理解:)

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