FileUpload上传文件的长和宽?

Question

对于asp.net2.0中的fileupload控件,在后台得如何得到上传的文件的长和宽呀?

Answer 1

文件有长和宽？那么你说的 Word 文档有多宽呢？

Answer 2

long len = FileUpload.FileContent.Length;

Answer 3

HttpFileCollection hc = HttpContext.Current.Request.Files;
                    HttpPostedFile hp = hc[0];
                    string num = UploadFile.PostedFile.FileName;
                    int i = num.LastIndexOf('.');
                    string newtype = num.Substring(i);
                    string newname = DateTime.Now.ToString("yyyyMMddHHmmss") + UploadFile.PostedFile.ContentLength;
                    b = new System.Drawing.Bitmap(hp.InputStream);                    if (b.Width > 100) //这里可以获取图片的宽度
                    {
                        newwidth = 100;
                        newheight = (b.Height * newwidth) / b.Width;
                        System.Drawing.Image img = b.GetThumbnailImage(newwidth, newheight, null, IntPtr.Zero);
                        img.Save(Server.MapPath("images/SmallImage/" + newname + newtype), System.Drawing.Imaging.ImageFormat.Jpeg);                    }
                    else
                    {
                        UploadFile.PostedFile.SaveAs(Server.MapPath("images/SmallImage/" + newname + newtype));
                    }

Answer 4

对于图片，你得读取文件流，用 System.Drawing.Bitmap 加载，即可获取 width height

Answer 5

http://community.csdn.net/Expert/topic/5705/5705229.xml?temp=.4674341
这个贴子,高手帮助回一下,.

Answer 6

对上传的是图片,System.Drawing.Bitmap这个对象没有 width height属性呀?