我有以下示例代码，每次按下按钮时都会缩放：

XAML：

<Window x:Class="WpfApplication12.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">

    <Canvas x:Name="myCanvas">

        <Canvas.LayoutTransform>
            <ScaleTransform x:Name="myScaleTransform" />
        </Canvas.LayoutTransform>

        <Button Content="Button" 
                Name="myButton" 
                Canvas.Left="50" 
                Canvas.Top="50" 
                Click="myButton_Click" />
    </Canvas>
</Window>

• .cs

  public partial class MainWindow : Window
  {
  public MainWindow()
  {
  InitializeComponent();
  }

  private void myButton_Click(object sender, RoutedEventArgs e)
  {
      Console.WriteLine("scale {0}, location: {1}", 
          myScaleTransform.ScaleX,
          myCanvas.PointToScreen(GetMyByttonLocation()));
  
      myScaleTransform.ScaleX =
          myScaleTransform.ScaleY =
          myScaleTransform.ScaleX + 1;
  
      Console.WriteLine("scale {0}, location: {1}",
          myScaleTransform.ScaleX,
          myCanvas.PointToScreen(GetMyByttonLocation()));
  }
  
  private Point GetMyByttonLocation()
  {
      return new Point(
          Canvas.GetLeft(myButton),
          Canvas.GetTop(myButton));
  }
  

  }

输出为：

scale 1, location: 296;315
scale 2, location: 296;315

scale 2, location: 346;365
scale 3, location: 346;365

scale 3, location: 396;415
scale 4, location: 396;415

如您所见，存在一个问题，我认为可以通过使用来解决，Application.DoEvents();但是.... NET 4 中不存在 先验 问题。

该怎么办？