/// <summary>
/// 彈出消息框
/// </summary>
/// <param name="message">消息</param>
/// <param name="owner">父級窗體</param>
public static void ShowDialog(string message, Window owner)
{
 //蒙板
 Grid layer = new Grid() { Background = new SolidColorBrush(Color.FromArgb(128, 0, 0, 0)) };
 //父級窗體原來的內容
 UIElement original = owner.Content as UIElement;
 owner.Content = null;
 //容器Grid
 Grid container = new Grid();
 container.Children.Add(original);//放入原來的內容
 container.Children.Add(layer);//在上面放一層蒙板
 //將裝有原來內容和蒙板的容器賦給父級窗體
 owner.Content = container;

 //彈出消息框
 MessageBox box = new MessageBox() { Owner = owner };
 box.tbc_message.Text = message;
 box.ShowDialog();
}

/// <summary>
/// 窗體關閉事件
/// </summary>
private void Window_Closed(object sender, EventArgs e)
{
 //容器Grid
 Grid grid = this.Owner.Content as Grid;
 //父級窗體原來的內容
 UIElement original = VisualTreeHelper.GetChild(grid, 0) as UIElement;
 //將父級窗體原來的內容在容器Grid中移除
 grid.Children.Remove(original);
 //賦給父級窗體
 this.Owner.Content = original;
}