Radio Button

 
<StackPanel>
    <RadioButton GroupName="Os" Content="Windows XP" IsChecked="True"/>
    <RadioButton GroupName="Os" Content="Windows Vista" />
    <RadioButton GroupName="Os" Content="Windows 7" />
    <RadioButton GroupName="Office" Content="Microsoft Office 2007" IsChecked="True"/>
    <RadioButton GroupName="Office" Content="Microsoft Office 2003"/>
    <RadioButton GroupName="Office" Content="Open Office"/>
</StackPanel>
 
 

 
<Window.Resources>
   <EnumMatchToBooleanConverter x:Key="enumConverter" />
</Window.Resources>
 
 
<RadioButton Content="Option 1" GroupName="Options1" 
             IsChecked="{Binding Path=CurrentOption, Mode=TwoWay, 
                                 Converter={StaticResource enumConverter},
                                 ConverterParameter=Option1}"  />
<RadioButton Content="Option 2" GroupName="Options2" 
             IsChecked="{Binding Path=CurrentOption, Mode=TwoWay, 
                                 Converter={StaticResource enumConverter},
                                 ConverterParameter=Option2}"  />
<RadioButton Content="Option 3" GroupName="Options3" 
             IsChecked="{Binding Path=CurrentOption, Mode=TwoWay, 
                                 Converter={StaticResource enumConverter},
                                 ConverterParameter=Option3}"  />
 
 

 
public class EnumMatchToBooleanConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, 
                              object parameter, CultureInfo culture)
        {
            if (value == null || parameter == null)
                return false;
 
            string checkValue = value.ToString();
            string targetValue = parameter.ToString();
            return checkValue.Equals(targetValue, 
                     StringComparison.InvariantCultureIgnoreCase);
        }
 
        public object ConvertBack(object value, Type targetType, 
                                  object parameter, CultureInfo culture)
        {
            if (value == null || parameter == null)
                return null;
 
            bool useValue = (bool)value;
            string targetValue = parameter.ToString();
            if (useValue)
                return Enum.Parse(targetType, targetValue);
 
            return null;
        }
    }