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Steps to Group the radio buttons together. Create a ButtonGroup instance by using ?ButtonGroup()? Method. ButtonGroup G = new ButtonGroup() Now add buttons in a Group ?G?, with the help of ?add()? Method. Example: G. add(Button1); G. add(Button2);

The RadioButton control is used to provide a set of mutually exclusive options. The user can select one radio button in a group. If you need to place more than one group of radio buttons in the same form, you should place them in different container controls like a GroupBox control.

Use the GroupName property to specify a grouping of radio buttons to create a mutually exclusive set of controls. You can use the GroupName property when only one selection is possible from a list of available options. When this property is set, only one RadioButton in the specified group can be selected at a time.

An error state occurs when the user doesn't select an option for a required field. When this happens, the group label and radio button of a required input field appear in red. If the label includes a required indicator, the indicator also changes to red.

Just give them the same name throughout the form you are using. All the radio buttons options must have the same name for you to be able to select one option at a time.

The fieldset / legend element combination is the preferred technique for providing a grouping information and label for a related group of radio buttons.

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.