正在阅读：将用户上传的文件生成缩略图的方法将用户上传的文件生成缩略图的方法

　　System.IO.Stream StreamObject = UpFile.InputStream;

　　System.IO.FileStream myStream = new System.IO.FileStream(UpFile.FileName,System.IO.FileMode.Open,System.IO.FileAccess.Read);         

　　System.Drawing.Image.GetThumbnailImageAbort myCallback =

　　new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);

　　System.Drawing.Image img1 = System.Drawing.Image.FromStream(StreamObject);

　　System.Drawing.Image timg = img1.GetThumbnailImage(100,100,myCallback,System.IntPtr.Zero);

　　timg.Save(Response.OutputStream,System.Drawing.Imaging.ImageFormat.Jpeg);