picturebox无法显示一个网络图片解决思路

picturebox无法显示一个网络图片
图片连接是http://img.***.com/cgi-bin/personal/agetimg.cgi?request=23000000fc058ef58c5242ceed730c076785f49de0b6e926fd91b4a20aee859babc8a2507e8753c509805266 是根据请求画出的一个图片，我用imagelocation无法显示图片，但直接打开正常，请问解决办法，为什么会这样

[解决办法]
用WebRequest方法（这个网络路径下）下载流 
Bitmap构造方法接受该流

C# code

using   System.IO; using   System.Net; HttpWebRequest   vHttpWebRequest   =   (HttpWebRequest)WebRequest.Create(        @ http://img.***.com/cgi-bin/personal/agetimg.cgi?request=23000000fc058ef58c5242ceed730c076785f49de0b6e926fd91b4a20aee859babc8a2507e8753c509805266"); HttpWebResponse   vHttpWebResponse   =   (HttpWebResponse)vHttpWebRequest.GetResponse(); BinaryReader   vBinaryReader   =   new   BinaryReader(vHttpWebResponse.GetResponseStream()); MemoryStream   vMemoryStream   =   new   MemoryStream(); byte[]   vBuffer   =   new   byte[0x1000]; int   vReadLength   =   vBinaryReader.Read(vBuffer,   0,   vBuffer.Length); while   (vReadLength   >   0) {        vMemoryStream.Write(vBuffer,   0,   vReadLength);        vReadLength   =   vBinaryReader.Read(vBuffer,   0,   vBuffer.Length); } vHttpWebResponse.Close(); vMemoryStream.Position   =   0; pictureBox1.Image   =   Bitmap.FromStream(vMemoryStream); vMemoryStream.Close();