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copied!<p>You could use a value converter. Here's a very specific implementation for the target Enum, but would not be hard to see how to make the converter more generic:</p> <pre><code>[Flags] public enum Department { None = 0, A = 1, B = 2, C = 4, D = 8 } public partial class Window1 : Window { public Window1() { InitializeComponent(); this.DepartmentsPanel.DataContext = new DataObject { Department = Department.A | Department.C }; } } public class DataObject { public DataObject() { } public Department Department { get; set; } } public class DepartmentValueConverter : IValueConverter { private Department target; public DepartmentValueConverter() { } public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { Department mask = (Department)parameter; this.target = (Department)value; return ((mask & this.target) != 0); } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { this.target ^= (Department)parameter; return this.target; } } </code></pre> <p>And then use the converter in the XAML:</p> <pre><code><Window.Resources> <l:DepartmentValueConverter x:Key="DeptConverter" /> </Window.Resources> <StackPanel x:Name="DepartmentsPanel"> <CheckBox Content="A" IsChecked="{Binding Path=Department, Converter={StaticResource DeptConverter}, ConverterParameter={x:Static l:Department.A}}"/>  </StackPanel> </code></pre> <p><strong>EDIT:</strong> I don't have enough "rep" (yet!) to comment below so I have to update my own post :(</p> <p>In the last comment demwiz.myopenid.com says "but when it comes to two-way binding the ConvertBack falls apart", well I've updated my sample code above to handle the ConvertBack scenario; I've also posted a sample working application <a href="http://www.box.net/shared/8xp0qqsc47" rel="noreferrer"><strong><em>here</em></strong></a> (<strong>edit:</strong> note that the sample code download also includes a generic version of the converter).</p> <p>Personally I think this is a lot simpler, I hope this helps.</p>

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