c# - How to Serialise Images from Remote URL to IsolateStorage or to XML? -

i need download images remote url , serialise them isolated storage, having trouble figuring out how work, i'm serialising uris images - , can work, want download image , store in file system, best way using c# , silverlight.

i've tried finding ways this, complicated, if possible can store image data in xml if solution, want download file - .net on desktop has many methods sort of thing, need silverlight solution.

if there examples demonstrate sort of thing, may - seems straightforward issue cannot resolve , have tried many things make work simply, can save image remote url isolatedstorage , asynchronously.

i have code @ moment can't seem streamline it, post if no suitable alternatives posted if needed.

try class. hope it'll you.
start grabbing use:

   imagegrabber grabber = new imagegrabber();    grabber.grabimage(@"http://www.google.com.ua/images/srpr/nav_logo25.png"); 

btw in example i've used nice method allow read bytes stream (even if stream doesn't support seek operation).

public class imagegrabber {     public void grabimage(string url)     {         httpwebrequest request = (httpwebrequest)webrequest.create(url);         request.method = "post";         request.begingetrequeststream(requestcallback, request);     }      private void requestcallback(iasyncresult asynchronousresult)     {         httpwebrequest request = (httpwebrequest)asynchronousresult.asyncstate;                   request.begingetresponse(getresponsecallback, request);     }      private void getresponsecallback(iasyncresult asynchronousresult)     {         httpwebrequest request = (httpwebrequest)asynchronousresult.asyncstate;          // end operation         httpwebresponse response = (httpwebresponse)request.endgetresponse(asynchronousresult);         stream streamresponse = response.getresponsestream();          byte[] bytes = readtoend(streamresponse);         //save image isolated storage file.png         isolatedstoragefile.getuserstoreforapplication().createfile("file.png").write(bytes, 0, bytes.count());     }      private static byte[] readtoend(stream stream)     {         long originalposition = stream.position;         stream.position = 0;          try         {             byte[] readbuffer = new byte[4096];              int totalbytesread = 0;             int bytesread;              while ((bytesread = stream.read(readbuffer, totalbytesread, readbuffer.length - totalbytesread)) > 0)             {                 totalbytesread += bytesread;                  if (totalbytesread == readbuffer.length)                 {                     int nextbyte = stream.readbyte();                     if (nextbyte != -1)                     {                         byte[] temp = new byte[readbuffer.length * 2];                         buffer.blockcopy(readbuffer, 0, temp, 0, readbuffer.length);                         buffer.setbyte(temp, totalbytesread, (byte)nextbyte);                         readbuffer = temp;                         totalbytesread++;                     }                 }             }              byte[] buffer = readbuffer;             if (readbuffer.length != totalbytesread)             {                 buffer = new byte[totalbytesread];                 buffer.blockcopy(readbuffer, 0, buffer, 0, totalbytesread);             }             return buffer;         }                 {             stream.position = originalposition;         }     } } 

file saved in isolated storage:

{system drive}:\users\{user name}\appdata\locallow\microsoft\silverlight\is\{bunch of autogenerated folders}\file.png