如何在WPF中设置按钮上的文本？

<Button x:Name="myButton" Content="Click Me" />

myButton.Content = "New Text";

<Button x:Name="myButton">
    <StackPanel>
        <Image Source="icon.png" />
        <TextBlock Text="Click Me" />
    </StackPanel>
</Button>

StackPanel stackPanel = new StackPanel();
Image image = new Image();
image.Source = new BitmapImage(new Uri("icon.png", UriKind.Relative));
TextBlock textBlock = new TextBlock();
textBlock.Text = "New Text";
stackPanel.Children.Add(image);
stackPanel.Children.Add(textBlock);
myButton.Content = stackPanel;