HTML form radio buttons
A radiobutton is a set of buttons with only one selectd state. When a radiobutton is selected the other ones are unselected. That's why they behave like the "radio buttons" of a car for sample. It is defined with the input tag using the attribute type and the value "radio". The name must be the same for all the bounded radio buttons. Only the selected radio button is sent to the server.
You can force a default selected button using the checked attribute.
Usual attributes
| Attribute name | Attribute value |
|---|---|
| class | Set a value for CSS rules. The CSS rule will be applied to all tags with the same class name |
| checked | This attribute (no value is required) will initialize the component with a checked state. |
| disabled | It will disable for any usage the component |
| id | Set a unique value, it is useful for JavaScript or for CSS rule. For CSS it will be applied only for this tag |
| name | The name of the parameter sent to the server |
| style | Set a CSS value. It has always priority for general CSS rules. Sample : "background-color:red;color:white" |
| value | The value sent to the server when the component is checked |