StackOverflow2013

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11024582
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2012-06-13T23:05:36.287
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2012-06-13T23:05:36.287
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First, since you said something along the lines of Navigation panel, you might want to think about using something like a listview or a listbox and templating your items while binded to a collection in your view model. But, since I don't know the scope of your Nav control, I will assume that your Nav control doesn't exactly fit this scheme. I will suggest using Attached Properties to achieve what you described as setting multiple properties based on single parent property. Consider the following as pseudo-code since I haven't tested it: <pre><code> public class MagicHelper { #region Super Property public static readonly DependencyProperty SuperProperty = DependencyProperty.RegisterAttached( "Super", typeof(SecretType), typeof(MagicHelper) new PropertyMetadata(-1, SuperChanged)); // Get public static SecretType GetSuper(DependencyObject obj) { return (SecretType)obj.GetValue(SuperProperty); } // Set public static void SetSuper(DependencyObject obj, SecretType value) { obj.SetValue(SuperProperty, value); } // Change Event - make stuff happen here public static void SuperChanged( DependencyObject obj, DependencyPropertyChangedEventArgs e) { // I am using Polygon here for example but you could use a base class that might cover all your controls if (!(obj is Polygon)) return; Polygon pGon = (Polygon)obj; // do your thing to pGon here with e.NewValue var mySecretInstance = e.NewValue as SecretType; if (mySecretInstance.frap) { pGon.Visibility = Visibility.Collapsed; pGon.Background = Brushes.Red; } ... ... } } </code></pre> and the XAML goes something like this <pre><code><UserControl Name="thisControl" xmlns:local="yourLibrary"> <Polygon local:MagicHelper.Super="{Binding ElementName=thisControl, Path=Selected"/> ... </code></pre> m
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1. POCleaner way to bind to a DependencyProperty of the parent UserControl from a child control
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