如何在WPF中将属性绑定到UserControl中的矩形样式

<UserControl x:Class="YourNamespace.YourUserControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="clr-namespace:YourNamespace">

    <Grid>
        <Rectangle x:Name="MyRectangle" Width="100" Height="100" Fill="Red" />
    </Grid>

</UserControl>

using System.Windows;
using System.Windows.Controls;

namespace YourNamespace
{
    public partial class YourUserControl : UserControl
    {
        public static readonly DependencyProperty RectangleStyleProperty =
            DependencyProperty.Register("RectangleStyle", typeof(Style), typeof(YourUserControl));

        public Style RectangleStyle
        {
            get { return (Style)GetValue(RectangleStyleProperty); }
            set { SetValue(RectangleStyleProperty, value); }
        }

        public YourUserControl()
        {
            InitializeComponent();
        }
    }
}

<Window x:Class="YourNamespace.YourWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:YourNamespace">

    <Grid>
        <local:YourUserControl RectangleStyle="{Binding MyRectangleStyle}" />
    </Grid>

</Window>