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We can define a group for radio buttons by giving each radio button the same name. As and when the user selects a particular option from this group, other options are deselected. Following is an example of radio buttons with different names within a form.

It is generally used in HTML form. If we want to deselect any option we have to select another option in the case of a radio button. Approach: To add a radio buttons in a webpage, the HTML provides a <input> element with type attribute is set to ?radio?.

Definition and Usage The <input type="radio"> 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.

A radio group is defined by giving each of radio buttons in the group the same name . Once a radio group is established, selecting any radio button in that group automatically deselects any currently-selected radio button in the same group.

HTML <input type=?radio?> Radio Buttons are used to let the user select exactly one option from a list of predefined options. Radio Button input controls are created by using the ?input? element with a type attribute having the value as ?radio?. Syntax: <input type="radio">

You group radio buttons by drawing them inside a container such as a Panel control, a GroupBox control, or a form. All radio buttons that are added directly to a form become one group. To add separate groups, you must place them inside panels or group boxes.

When using HTML's native input radio button, <input type="radio"> , the radio buttons are grouped when each of input radio buttons in the group is given the same name .