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我在我的根ResourceDictionary中有以下內容。 Foreground = Red部分工作，但自定義附加的依賴項屬性不會被設置。Silverlight 4 - 如何在樣式中設置自定義附加的依賴項屬性？
我可以通過代碼手動設置它，但我顯然希望避免必須爲每個文本框設置它。這在Silverlight中工作嗎？我已經看到一些關於在WPF中完成它的帖子，而且我的代碼看起來是正確的（對我來說）。
<Style TargetType="TextBox">
<Setter Property="controls:TextBoxContextMenu.HasContextMenu" Value="True" />
<Setter Property="Foreground" Value="Red" />
</Style>
/// <summary>
/// Gets the value of the HasContextMenu attached property for a specified TextBox.
/// </summary>
/// <param name="element">The TextBox from which the property value is read.</param>
/// <returns>The HasContextMenu property value for the TextBox.</returns>
public static bool GetHasContextMenu(TextBox element)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
return (bool)element.GetValue(HasContextMenuProperty);
}
/// <summary>
/// Sets the value of the HasContextMenu attached property to a specified TextBox.
/// </summary>
/// <param name="element">The TextBox to which the attached property is written.</param>
/// <param name="value">The needed HasContextMenu value.</param>
public static void SetHasContextMenu(TextBox element, bool value)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
element.SetValue(HasContextMenuProperty, value);
}
/// <summary>
/// Identifies the HasContextMenu dependency property.
/// </summary>
public static readonly DependencyProperty HasContextMenuProperty =
DependencyProperty.RegisterAttached(
"HasContextMenu",
typeof(bool),
typeof(TextBox),
new PropertyMetadata(false, OnHasContextMenuPropertyChanged));
/// <summary>
/// HasContextMenuProperty property changed handler.
/// </summary>
/// <param name="d">TextBoxContextMenu that changed its HasContextMenu.</param>
/// <param name="e">Event arguments.</param>
private static void OnHasContextMenuPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
// code
}
我要補充的是，附加依賴屬性是一類由RadContextMenu繼承，這是定義的DependencyObject（我一直在閱讀和某個地方，這是建議，如果附加屬性是這可不行定義在這樣的一類，但這似乎很奇怪）