请问把图片加载到PictureBox中怎样实现图片自动调整大小以全显示或者出现滚动条？

this.pictureBox1.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch;
在属性浏览器里有，BackgroundImageLayout这个属性
picturebox没有滚动条，除非你画一个上去

www.搜索C# PictureBox可以找到很多例子。其中一个TpscPictureBox比较好。

private void button2_Click(object sender, EventArgs e)
        {
             openFileDialog1.Filter = "*jpg|*JPG|*GIF|*.BMP";
             if (openFileDialog1.ShowDialog() == DialogResult.OK)
             {
                 string fullpath = openFileDialog1.FileName;
 
                 //图片异步加载完成后的处理事件
                 pictureBox1.LoadCompleted += new AsyncCompletedEventHandler(pictureBox1_LoadCompleted);
                 //图片加载时，显示等待光标
                 pictureBox1.UseWaitCursor = true;
 
                 //采用异步加载方式
                 pictureBox1.WaitOnLoad = false;
                 Bitmap bm = new Bitmap(fullpath);
                 Point pt = new Point(bm.Size );
                 if (pt.X > pictureBox1.Size.Width || pt.Y > pictureBox1.Size.Height)
                 {
                     pictureBox1.SizeMode = PictureBoxSizeMode.Zoom;
                 }
                 else
                 {
                     pictureBox1.SizeMode = PictureBoxSizeMode.CenterImage;
                 }
 
                 //开始异步加载，图片的地址，请自行更换
                 //pictureBox1.LoadAsync("http://www.);
                pictureBox1.LoadAsync(fullpath );
             }
        }
        void pictureBox1_LoadCompleted(object sender, AsyncCompletedEventArgs e)
        {
            //图片加载完成后，将光标恢复
            pictureBox1.UseWaitCursor = false;
        }
呵呵 这个准行

收到的鲜花

• Mo诫 于 2009-09-27 09:52 送鲜花  5朵   附言：我很赞同

各位谢谢了

师兄谢了！以前没怎么用异步。。。这下还有了体会了！

ding

缩放模式为stretchImage应该就是你要的结果？？？