创建Window.Title附加属性 [英] Creating a Window.Title Attached Property

问题描述

我有一个窗口的外壳，基本上是：

I have a Window shell that is basically:

<Window>
    <ContentPresenter Content="{Binding}" />
</Window>

注入到内容presenter在运行时是用户控件。我希望能够做的是写：

Injected into the ContentPresenter at run-time are UserControls. What I want to be able to do is write:

<UserControl Window.Title="The title for my window">
[...]
</UserControl>

使窗口标题使用用户控件 Window.Title 属性更新。

我有这个可以通过附加属性来实现的感觉。任何人都可以开始我关闭了正确的方向？

I have a feeling this can be achieved using attached properties. Can anyone start me off in the right direction?

丹尼尔

推荐答案

C＃：

public class MyUserControl : UserControl
{
   public static readonly DependencyProperty WindowTitleProperty = DependencyProperty.RegisterAttached("WindowTitleProperty",
                typeof(string), typeof(UserControl),
                new FrameworkPropertyMetadata(null, WindowTitlePropertyChanged));

        public static string GetWindowTitle(DependencyObject element)
        {
            return (string) element.GetValue(WindowTitleProperty);
        }

        public static void SetWindowTitle(DependencyObject element, string value)
        {
            element.SetValue(WindowTitleProperty, value);
        }

        private static void WindowTitlePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
                    Application.Current.MainWindow.Title = e.NewValue;
        }
}

XAML：

<UserControl namespace:MyUserControl.WindowTitle="The title for my window">
[...]
</UserControl>

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