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How to: Group Windows Forms RadioButton Controls to Function as a Set
.NET Framework 2.0
Windows Formscontrols are designed to give users a choice among two or more settings, of which only one can be assigned to a procedure or object. For example, a group of RadioButton controls may display a choice of package carriers for an order, but only one of the carriers will be used. Therefore only one RadioButton at a time can be selected, even if it is a part of a functional group.
You group radio buttons by drawing them inside a container such as acontrol, a 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. For more information about panels or group boxes, see or .
To group RadioButton controls as a set to function independently of other sets
Drag a GroupBox or Panel control from the Windows Forms tab on the Toolbox onto the form.
Draw RadioButton controls on the GroupBox or Panel control.