求高手 加载大量图片 怎么优化内存？

Question

求高手 加载大量图片 怎么优化内存？

Answer 1

            Image _img = Image.FromFile("...");//大文件
            Bitmap img = new Bitmap(200, 200);//实际显示
            Graphics g = Graphics.FromImage(img);
            g.DrawImage(_img, new Rectangle(0, 0, img.Width, img.Height));
            g.Dispose();
            _img.Dispose();
            this.pictureBox1.Image = img;

Answer 2

我用的是XML 循环读的 
 public void winLoad()
        {
            readXML xml = new readXML();
            DataTable table = xml.ReadMiniDTXml();
            for (int i = 0; i < table.Rows.Count; i++)
            {
                Image user = new Image();
                user.Name = "u" + (i + 1).ToString();
               
                user.Source = new BitmapImage(new Uri(Environment.CurrentDirectory + table.Rows[i]["path1"].ToString().Trim()));                user.Width = 100;
                user.Height = 100;
                this.stackPanel_Image.Children.Add(user);               
            }然后用线程加载的
    Thread thread = new Thread(DO);
          //  thread.IsBackground = true;
            thread.Start();
  public void AddImage()
        {
            winLoad();
            
        
        }
     public void DO()
        {            System.Windows.Application.Current.Dispatcher.BeginInvoke(new AddButtonDelegate(AddImage), DispatcherPriority.ContextIdle);        }