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copied!<p>Kris, I'm not sure this is the best way to bind ApplicationSettings, but this is how I did it in <a href="http://code.google.com/p/wittytwitter/" rel="nofollow noreferrer">Witty</a>.</p> <p>1) Create a dependency property for the setting that you want to bind in the window/page/usercontrol/container. This is case I have an user setting to play sounds.</p> <pre><code> public bool PlaySounds { get { return (bool)GetValue(PlaySoundsProperty); } set { SetValue(PlaySoundsProperty, value); } } public static readonly DependencyProperty PlaySoundsProperty = DependencyProperty.Register("PlaySounds", typeof(bool), typeof(Options), new FrameworkPropertyMetadata(false, new PropertyChangedCallback(OnPlaySoundsChanged))); private static void OnPlaySoundsChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args) { Properties.Settings.Default.PlaySounds = (bool)args.NewValue; Properties.Settings.Default.Save(); } </code></pre> <p>2) In the constructor, initialize the property value to match the application settings</p> <pre><code> PlaySounds = Properties.Settings.Default.PlaySounds; </code></pre> <p>3) Bind the property in XAML</p> <pre><code> <CheckBox Content="Play Sounds on new Tweets" x:Name="PlaySoundsCheckBox" IsChecked="{Binding Path=PlaySounds, ElementName=Window, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" /> </code></pre> <p>You can download the full <a href="http://code.google.com/p/wittytwitter/" rel="nofollow noreferrer">Witty source</a> to see it in action or browse just the <a href="http://code.google.com/p/wittytwitter/source/browse/trunk/Witty/Witty/Options.xaml.cs" rel="nofollow noreferrer">code for options window</a>.</p>

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