从父控件设置WPF嵌套控件属性

<UserControl x:Class="MyNamespace.MyUserControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:local="clr-namespace:MyNamespace"
             mc:Ignorable="d"
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
       <Button x:Name="myButton" Content="Click me!"/>
    </Grid>
</UserControl>

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

namespace MyNamespace
{
    public partial class MyUserControl : UserControl
    {
        public MyUserControl()
        {
            InitializeComponent();

            // 设置嵌套控件的属性
            myButton.Width = 100;
            myButton.Height = 50;
            myButton.Background = Brushes.Blue;
            myButton.Foreground = Brushes.White;
            myButton.FontSize = 16;
            myButton.Click += MyButton_Click;
        }

        private void MyButton_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Button clicked!");
        }
    }
}