RadioButton Control (Windows Forms)
RadioButton controls present a set of two or more mutually exclusive choices to the user. While radio buttons and check boxes may appear to function similarly, there is an important difference: when a user selects a radio button, the other radio buttons in the same group cannot be selected as well.
RadioButton Control Overview
Explains what this control is and its key features and properties.
How to: Group Windows Forms RadioButton Controls to Function as a Set
Explains how to group radio buttons as a set, of which only one may be selected.
Describes this class and has links to all its members.
Controls to Use on Windows Forms
Provides a complete list of Windows Forms controls, with links to information on their use.