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POHow do I bind to this custom dependency property?
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  1. POHow do I bind to this custom dependency property?
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    copied!<p>I have a DependencyProperty in my custom UserControl that looks like this:</p> <pre><code>public static readonly DependencyProperty ColumnWidthProperty = DependencyProperty.Register("ColumnWidth", typeof(int), typeof(CallBoard), new PropertyMetadata(150)); public int ColumnWidth { get { return (int)GetValue(ColumnWidthProperty); } set { SetValue(ColumnWidthProperty, value); } } </code></pre> <p>In Expression Blend 3, I have this:</p> <pre><code>&lt;UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="SilverlightTest.CallBoard" d:DesignWidth="640" d:DesignHeight="480"&gt; &lt;UserControl.Resources&gt; &lt;DataTemplate x:Key="EmployeeHeaderTemplate"&gt; &lt;TextBlock Text="{Binding Name}" TextAlignment="Center" FontWeight="Bold" FontSize="16"/&gt; &lt;/DataTemplate&gt; &lt;DataTemplate x:Key="CallListItemTemplate"&gt; &lt;StackPanel &gt; &lt;TextBlock Text="{Binding CustomerName}" FontWeight="Bold"/&gt; &lt;TextBlock Text="{Binding Details}"/&gt; &lt;/StackPanel&gt; &lt;/DataTemplate&gt; &lt;DataTemplate x:Key="CallListTemplate"&gt; &lt;ListBox ItemTemplate="{StaticResource CallListItemTemplate}" ItemsSource="{Binding Calls}"/&gt; &lt;/DataTemplate&gt; &lt;/UserControl.Resources&gt; &lt;StackPanel x:Name="stackPanel" DataContext="{Binding Source={StaticResource DummyDataSource}}"&gt; &lt;ItemsControl ItemsPanel="{StaticResource HorizontalItemsPanelTemplate}" ItemTemplate="{StaticResource EmployeeHeaderTemplate}" ItemsSource="{Binding}"/&gt; &lt;ItemsControl ItemsPanel="{StaticResource HorizontalItemsPanelTemplate}" ItemTemplate="{StaticResource CallListTemplate}" ItemsSource="{Binding}"/&gt; &lt;/StackPanel&gt; &lt;/UserControl&gt; </code></pre> <p>Now, what I'd like to do is make the ColumnWidth dependency property control the width of the TextBlock in the EmployeeHeaderTemplate DataTemplate and the ListBox in the CallListTemplate DataTemplate. I know I can do this in C#, but I have a feeling it'd also be possible with pure XAML data-binding.</p> <p>But, being relatively new to Silverlight and Expression Blend 3, I'm not sure how to go about this. Any suggestions?</p>
 

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