RadioButton.Checked Property Reference Feedback Definition Namespace: System.Windows.Forms Assembly: System.Windows.Forms.dll Gets or sets a value indicating whether the control is checked. C# 复制 [System.ComponentModel.Bindable(true)] [System.ComponentModel.SettingsBindable(true)] public bool ...
When you groupHtmlInputRadioButtoncontrols, only one radio button in the group can be selected at a time. TheCheckedproperty of the selected control is set totrue, while the same property is set tofalsefor all other radio buttons in the group. ...
If theCheckedvalue is set tofalse, theRadioButtonportion of the control must be checked in code in theClickevent handler. In addition, if theRadioButtonis part of aRadioButtoncontrol group, this property ensures that only one of the controls is checked at a given time. ...
在我们的项目中经常要用到数据模板,最近做的一个项目中在数据模板中要放一些RadioButton,其中每一个RadioButton设置了Checked事件,如果直接在View层写Checked事件的话不符合MVVM的设计思想,View层尽量只做和界面相关的绑定,而把所有的逻辑都写在ViewModel层中,但是如何才能把我们常见的.net事件绑定到Command上面呢?在该...
RadioButton就是其中一个。 先来从设置值的角度介绍一下WPF里的Dependency Property(以下简称DP)。在WPF里控制一个控件的DP,有太多的方式。可以用Style,可以用Animation,可以用Data Binding,可以用Trigger,还有最基本直接赋值。控件会综合上面各个方面的值,其及优先级等因素来决定一个DP的最终的值是多少。关于这方面...
document.getElementById("red").checked=true; } functionuncheck() { document.getElementById("red").checked=false; } Try it Yourself » Description The checked property sets or returns the checked state of a radio button. This property reflects the HTML checked attribute. ...
所以我们需要在 Checked 和 Unchecked 这两个事件中分别对 _lastChecked 进行相应的赋值: 然后,由于触发了 Click 事件后(也有可能是 PreviewMouseDown 后 Click 前的某个事件,比如 PreviewMouseUp),WPF 框架(或者说是 RadioButton 内部)就会把 IsChecked 设为 true(这就是前面的代码中需要另外新建变量来判断的原因...
Content,类型为 object,用于定义要由 RadioButton 显示的 string 或View。 IsChecked,类型为 bool,用于定义是否选中 RadioButton。 此属性使用 TwoWay 绑定,默认值为 false。 GroupName,类型为 string,用于定义指明哪些 RadioButton 控件互斥的名称。 此属性的默认值为 null。 Value,类型为 object,用于定义与 Radio...
Sets or retrieves the state of a check box or a radio button. The CHECKED attribute in HTML and the checked property in JavaScript work differently for these controls. You can set the initial state with the CHECKED attribute, while the checked property c
Check if a radio button is checked by default: varx = document.getElementById("myRadio").defaultChecked; Try it Yourself » Description The defaultChecked property returns the default value of the checked attribute. This property returns true if the radio button is checked by default, otherwis...