如何取消选中单选按钮 [英] how to uncheck the radio button

问题描述

在我的c＃应用程序中，我需要radiobutton，但是如果用户单击一个单选按钮，他们就无法取消它们（所以一旦他们选择了它，它就成为强制性的）。我无法取消它们。有人会提出这个想法吗？

In my c# application, I need radiobutton, but if the user clicks a radio button they can't unclick them (so it becomes mandatory once they've chosen one). I can not unclick them. can some one give the idea?

推荐答案

你应该使用 CheckBox 。 RadioButtons 是要选择的。



但是看看答案 - 我们如何取消选中单选按钮 [ ^ ]。

You should use CheckBox instead. RadioButtons are meant to be chose.

However look at the answer - How can we uncheck a radio button[^].

我建​​议您评估CheckBoxes是否满足您在此设计方案中的需求。



RadioButtons意味着在组中使用...例如，WinForms面板中的所有RadioButton都是组...其中一个将始终将其CheckState属性设置为'Checked。



通过使用Microsoft Windows用户界面指南设计用户界面，您将向用户展示他们熟悉的交互。以下是RadioButtons的指南：[ ^ ]。



在WinForms中，它可能是一种不一致的行为，一些RadioButton放在一些ContainerControl或Form上，最初出现在设计中 - 时间，然后在运行时，因为所有未经检查，除非你在设计时设置其中一个的checked属性。

I suggest you evaluate whether CheckBoxes meet your needs in this design scenario.

RadioButtons are meant to be used in groups ... for example, all the RadioButtons in a WinForms Panel are a "group" ... where one of them will always have its CheckState Property set to 'Checked.

By designing your user-interface using the Microsoft Windows User Interface Guidelines, you will presenting users with interactive they are familiar with. Here's guidelines for RadioButtons: [^].

In WinForms it is, perhaps, an inconsistent behavior that a bunch of RadioButtons put in some ContainerControl, or on a Form, initially appear at design-time, and then at run-time, as all unchecked unless you have at design-time set the checked property of one of them.

你好

hello

bool isChecked =false;
    private void radioButton1_CheckedChanged(object sender, EventArgs e)
    {
        isChecked = radioButton1.Checked;
    }

    private void radioButton1_Click(object sender, EventArgs e)
    {
        if (radioButton1.Checked && !isChecked)
            radioButton1.Checked = false;
        else
        {
            radioButton1.Checked = true;
            isChecked = false;
        }
    }

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