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    copied!<p>The linked web page is for an unusual situation, a "push" binding. That is, a one-way-to-source binding was attempted on the read-only property, not on another property trying to bind to it. By contrast, if you want your property to be bindable to other properties <strong>using a one-way binding expression on the other property</strong>, then you can use a read-only dependency property without any issues.</p> <p><strong>Edit:</strong></p> <p>Here is an example:</p> <pre><code>&lt;Grid&gt; &lt;Grid.Resources&gt; &lt;local:MyObject x:Key="myObject" PropertyA="True" PropertyB="False"/&gt; &lt;/Grid.Resources&gt; &lt;StackPanel DataContext="{StaticResource myObject}"&gt; &lt;CheckBox IsChecked="{Binding PropertyA}" Content="PropertyA"/&gt; &lt;CheckBox IsChecked="{Binding PropertyB}" Content="PropertyB"/&gt; &lt;CheckBox IsChecked="{Binding PropertyC, Mode=OneWay}" IsEnabled="False" Content="PropertyC"/&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; </code></pre> <p>and the dependency properties, one of which is read-only:</p> <pre><code>public class MyObject : DependencyObject { public bool PropertyA { get { return (bool)GetValue(PropertyAProperty); } set { SetValue(PropertyAProperty, value); } } public static readonly DependencyProperty PropertyAProperty = DependencyProperty.Register("PropertyA", typeof(bool), typeof(MyObject), new UIPropertyMetadata(false, OnPropertyAOrBChanged)); public bool PropertyB { get { return (bool)GetValue(PropertyBProperty); } set { SetValue(PropertyBProperty, value); } } public static readonly DependencyProperty PropertyBProperty = DependencyProperty.Register("PropertyB", typeof(bool), typeof(MyObject), new UIPropertyMetadata(false, OnPropertyAOrBChanged)); public bool PropertyC { get { return (bool)GetValue(PropertyCProperty); } set { SetValue(PropertyCPropertyKey, value); } } private static readonly DependencyPropertyKey PropertyCPropertyKey = DependencyProperty.RegisterReadOnly("PropertyC", typeof(bool), typeof(MyObject), new UIPropertyMetadata()); public static readonly DependencyProperty PropertyCProperty = PropertyCPropertyKey.DependencyProperty; private static void OnPropertyAOrBChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { var myObject = d as MyObject; myObject.PropertyC = myObject.PropertyA || myObject.PropertyB; } } </code></pre>
 

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