RaddioButton控件

        <GroupBox Margin="5">
            <StackPanel>
                <RadioButton IsChecked="true">1</RadioButton>
                <RadioButton>2</RadioButton>
                <RadioButton>3</RadioButton>
            </StackPanel>
        </GroupBox>

 

        <RadioButton GroupName="1">11</RadioButton>
        <RadioButton GroupName="1">12</RadioButton>
        <RadioButton GroupName="2">13</RadioButton>