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copied!<p>If I understand your question correctly you want to bind the culture for a specific <code>TextBlock</code>.</p> <p>You can't bind the properties of a <code>Binding</code> so binding <code>ConverterCulture</code> won't work.</p> <p>There is a <code>Language</code> property on <code>FrameworkElement</code> which works fine to set like this</p> <pre><code><TextBlock Language="en-US" Text="{Binding Number, ElementName=BoxPanelElement, StringFormat={}{0:C}}"/> </code></pre> <p>However, when trying to bind this property I get a weird exception<br> <em>I'm probably going to ask a question on this exception myself</em></p> <blockquote> <p>Binding for property 'Language' cannot use the target element's Language for conversion; if a culture is required, ConverterCulture must be explicitly specified on the Binding.</p> </blockquote> <p>According to this answer by <a href="https://stackoverflow.com/users/98713/thomas-levesque">Thomas Levesque</a> this should be possible though so maybe I did something wrong.. <a href="https://stackoverflow.com/questions/5606789/wpf-xmllang-language-binding">WPF xml:lang/Language binding</a></p> <p>All I got working was using an attached behavior which in turn updated <code>Language</code> when MyCulture updated.</p> <pre><code><TextBlock local:LanguageBehavior.Language="{Binding MyCulture}" Text="{Binding MyNumber, ElementName=BoxPanelElement, StringFormat={}{0:C}}"/> </code></pre> <p><em>LanguageBehavior</em></p> <pre><code>public class LanguageBehavior { public static DependencyProperty LanguageProperty = DependencyProperty.RegisterAttached("Language", typeof(string), typeof(LanguageBehavior), new UIPropertyMetadata(LanguageBehavior.OnLanguageChanged)); public static void SetLanguage(FrameworkElement target, string value) { target.SetValue(LanguageBehavior.LanguageProperty, value); } public static string GetLanguage(FrameworkElement target) { return (string)target.GetValue(LanguageBehavior.LanguageProperty); } private static void OnLanguageChanged(DependencyObject target, DependencyPropertyChangedEventArgs e) { FrameworkElement element = target as FrameworkElement; element.Language = XmlLanguage.GetLanguage(e.NewValue.ToString()); } } </code></pre>

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