我创建了这个TinyWindow类，它派生自Window。

public class TinyWindow : Window
{
    public TinyWindow()
    {
        Grid grid = new Grid();
        grid.RowDefinitions.Add(new RowDefinition() { Height = new GridLength(50, GridUnitType.Pixel) });
        grid.RowDefinitions.Add(new RowDefinition() { Height = new GridLength(1, GridUnitType.Star) });
                        
        ContentControl contentControl = new ContentControl();
        contentControl.SetBinding(ContentControl.ContentProperty, new Binding(nameof(WindowContent)) { Source = this });
        Grid.SetRow(contentControl, 1);
        grid.Children.Add(contentControl);

        Content = grid;     
        
    }
    
    public object WindowContent
    {
        get { return (object)GetValue(WindowContentProperty); }
        set { SetValue(WindowContentProperty, value); }
    }

    // Using a DependencyProperty as the backing store for WindowContent.  This enables animation, styling, binding, etc...
    public static readonly DependencyProperty WindowContentProperty =
        DependencyProperty.Register("WindowContent", typeof(object), typeof(TinyWindow), new PropertyMetadata(null));
    }
}

所以我可以在XAML中这样使用它。

<controls:TinyWindow x:Class="MyProject.Windows.SomeTinyWindow"
    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"
    xmlns:local="clr-namespace:MyProject.Windows"
    xmlns:controls="clr-namespace:MyProject.Controls"
    mc:Ignorable="d"
    Title="Select a Port">
<controls:TinyWindow.WindowContent>
   <TextBlock Text="this is my content"/>
</controls:TinyWindow.WindowContent>

这很好。但我只想写这个就达到同样的效果。

<controls:TinyWindow x:Class="MyProject.Windows.SomeTinyWindow"
    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"
    xmlns:local="clr-namespace:MyProject.Windows"
    xmlns:controls="clr-namespace:MyProject.Controls"
    mc:Ignorable="d"
    Title="Select a Port">
<TextBlock Text="this is my content"/>

我怎么才能做到这一点？是否重写内容属性？我试过了，但基地。此处的内容为空。

public new object Content
{
    get { return base.Content; }
    set
    {
        var grid = base.Content as Grid;
        //some logic to add value to gris
    }
}

你有什么推荐的吗？