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copied!<p>The correct value is</p> <pre><code>DisplayMemberPath="(local:SelectorSwitchedControl.NameForSelector)" </code></pre> <p>If that is not working then I would use Snoop (<a href="http://snoopwpf.codeplex.com/" rel="nofollow">http://snoopwpf.codeplex.com/</a>) to make sure that the value is getting set correctly.</p> <p>Here is the simplest working example</p> <p>Xaml:</p> <pre><code><Window x:Class="WPFTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:WPFTest" Title="MainWindow" Height="350" Width="525" Loaded="MainWindow_Loaded"> <Grid> <ComboBox Name="cb" DisplayMemberPath="(local:MainWindow.TestValue)" /> </Grid> </code></pre> <p></p> <p>Code:</p> <pre><code>public static string GetTestValue(DependencyObject element) { return (string)element.GetValue(TestValueProperty); } public static void SetTestValue(DependencyObject element, string value) { element.SetValue(TestValueProperty, value); } public static readonly DependencyProperty TestValueProperty = DependencyProperty.RegisterAttached("TestValue", typeof(string), typeof(MainWindow), new FrameworkPropertyMetadata(null)); private void MainWindow_Loaded(object sender, System.Windows.RoutedEventArgs e) { TextBlock tb = default(TextBlock); for (int i = 10; i <= 15; i++) { tb = new TextBlock(); tb.Text = "Text for " + i; tb.SetValue(TestValueProperty, "Property For " + i); this.cb.Items.Add(tb); } } </code></pre>

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