如何在RelativePanel中动态添加TextBlocks？

<RelativePanel x:Name="myRelativePanel">
    <!-- Existing controls in the RelativePanel -->
</RelativePanel>

TextBlock myTextBlock = new TextBlock();
myTextBlock.Text = "Dynamic Text";
myTextBlock.Margin = new Thickness(10); // 设置边距
myTextBlock.HorizontalAlignment = HorizontalAlignment.Left; // 设置水平对齐方式
myTextBlock.VerticalAlignment = VerticalAlignment.Top; // 设置垂直对齐方式

RelativePanel.SetAlignLeftWithPanel(myTextBlock, true); // 设置相对于RelativePanel左对齐
RelativePanel.SetBelow(myTextBlock, existingControl); // 设置TextBlock位于existingControl下方
myRelativePanel.Children.Add(myTextBlock); // 将TextBlock添加到RelativePanel中