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two radio buttons
Put at least two radio buttons in one group. One radio button in a group must always be selected. If the user should have the chance to choose no item from the offered options, create a separate radio button with a “No selection” label or similar text that turns off the other contents-related options.
Radio buttons are used when there is a list of two or more options that are mutually exclusive and the user must select exactly one choice. In other words, clicking a non-selected radio button will deselect whatever other button was previously selected in the list.
How are radio buttons used in a group?
Radio buttons, also called option buttons, let users select one option from a collection of two or more mutually exclusive, but related, options. Radio buttons are always used in groups, and each option is represented by one radio button in the group. In the default state, no radio button in a RadioButtons group is selected.
The defines a radio button. Radio buttons are normally presented in radio groups (a collection of radio buttons describing a set of related options). Only one radio button in a group can be selected at the same time. Note: The radio group must have share the same name (the value of the name attribute) to be treated as a group.
Only one radio button in a given group can be selected at the same time. Radio buttons are typically rendered as small circles, which are filled or highlighted when selected. The source for this interactive example is stored in a GitHub repository.
How does the radio button work in a check box?
Within a group of checkboxes, each operates individually, so the user can check or uncheck options independently. The radio button is presented as a small circle on the screen. It also has two states, and when selected, the circle is filled with a solid dot.