如何获取从数据库中读取出的图片尺寸

Question

数据库：SQL Server 2005
语言：C＃
数据类型：image
如何获取图片的width & height??

Answer 1

只要你能把图片数据读出来还原成图片用Image属性就知道Height,Width了

Answer 2

1.                 if (Convert.IsDBNull(o))
                    {
                        hasPhoto = false;
                    }
                    else
                    {
                        ks_photo = (byte[])dt.Tables[0].Rows[0]["ks_photo"];
                        if (ks_photo.Length == 0)
                            hasPhoto = false;
                        else
                        hasPhoto = true;
                    }                    
2.        public static Image Photo
        {
            get
            {
                if (hasPhoto == false)
                    return null;
                System.IO.MemoryStream ms = new System.IO.MemoryStream(ks_photo);
                Image im = Image.FromStream(ms);
                ms.Close();
                return im;
            }
        }
3.Photo.Width,Photo.Height