C# 带图片预览OpenFileDailog

MSDN位置：http://msdn.microsoft.com/en-us/library/ms996463.aspx

这位哥们博客：http://blog.csdn.net/johnsuna/article/details/727655

效果图：

调用方法：

namespace KEEN_EYES{    /// <summary>    /// 主画面FORM    /// </summary>    public partial class Main_Form : Form    {// 显示图片        private PictureBox _picBox;        // 图片宽        private Label imgWLable;        // 图片高        private Label imgHLable;        // 标题        private Label titleLable;/// <summary>        /// 打开文件        /// </summary>                private void openFileDlg()        {            Panel p = new Panel();            p.BorderStyle = BorderStyle.None;            // 显示缩略图            _picBox = new PictureBox();            // 预览            titleLable = new Label();            // 像素宽            imgWLable = new Label();            // 像素高            imgHLable = new Label();            p.Dock = DockStyle.Right;            p.Controls.Add(titleLable);            p.Controls.Add(imgWLable);            p.Controls.Add(imgHLable);            titleLable.Text = Constant.STR_PREVIEW;            titleLable.Dock = DockStyle.Top;            imgHLable.Dock = DockStyle.Bottom;            imgWLable.Dock = DockStyle.Bottom;            p.Controls.Add(_picBox);            _picBox.Dock = DockStyle.Fill;            _picBox.Size = new Size(60, 60);            _picBox.BackColor = System.Drawing.SystemColors.ButtonShadow;            _picBox.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;            _picBox.BorderStyle = BorderStyle.FixedSingle;            // 添加后缀名            string filter = Constant.OPEN_ALL_IMG + Constant.OPEN_JPG_IMG + Constant.OPEN_TIF_IMG;            PreViewOpenFileDialog ofd = new PreViewOpenFileDialog("jpg", "", filter, p, this.Handle);            ofd.SelectionChanged += new PreViewOpenFileDialog.SelectionChangedHandler(ofd_SelectionChanged);            // 打开文件选择框            bool f = ofd.Show();            string filePath = ofd.SelectedPath;            if (f && !String.IsNullOrEmpty(filePath))            {                // 打开图片            }        }/// <summary>        /// 选择图片        /// </summary>        /// <param name="path"></param>        private void ofd_SelectionChanged(string path)        {            if (!File.Exists(path)) return;            if (!Path.HasExtension(path)) return;            string ext = Path.GetExtension(path).ToLower();            //if (ext == ".jpeg" || ext == ".jpg" || ext == ".gif" || ext == ".png" || ext == ".tif" || ext == ".bmp")            if (ext == ".jpeg" || ext == ".jpg" || ext == ".tif" || ext == ".bmp")            {                Bitmap image1 = AForge.Imaging.Image.FromFile(path);                System.Drawing.Image originalImage = image1;//System.Drawing.Image.FromFile(path);                _picBox.Image = originalImage;                int widthOriginal = originalImage.Width;                int heightOriginal = originalImage.Height;                imgWLable.Text = Constant.STR_WIDTH + widthOriginal.ToString() + " " + Constant.STR_PIXELS;                imgHLable.Text = Constant.STR_HIGTH + heightOriginal.ToString() + " " + Constant.STR_PIXELS;            }        }    }}

控件地址：http://download.csdn.net/detail/yueguanyun/5261713