Silverlight 4 image upload problem - web-services

Question

I am using Silverlight4 with java webervices in jsp page. I want to save an image to the server so trying to do this with java webservice. I am using below lines of code but output is damaged. I dont understand why. Please help me. This is really important for me. When i try to open 3mb jpeg file contains "Windows Photo Viewer cant open this picture because file appears to be damaged, corrupted or is too large."
Client Side COde
WriteableBitmap wb = new WriteableBitmap(bitmapImage);
byte[] bb = ToByteArray(wb);
public byte[] ToByteArray(WriteableBitmap bmp)
{
int[] p = bmp.Pixels;
int len = p.Length * 4;
byte[] result = new byte[len]; // ARGB
Buffer.BlockCopy(p, 0, result, 0, len);
return result;
}
WebService Code
#WebMethod(operationName = "saveImage")
public Boolean saveImage(#WebParam(name = "img")
byte[] img, #WebParam(name = "path")
String path) {
try{
FileOutputStream fos = new FileOutputStream("C:\\Users\\TheIntersect\\Desktop\\sharp_serializer_dll\\saved.jpg");
fos.write(img);
fos.close();
return true;
}
catch(Exception e){
return false;
}
}

Answer 1

I found my answer on forums.silverlight.net
It is very interesting when i try to call ReadFully(Stream) just after the Stream definition it works but when i call 10 lines of code later it returns all 0.
FUnction
public static byte[] ReadFully(Stream input)
{
byte[] buffer = new byte[input.Length];
using (MemoryStream ms = new MemoryStream())
{
int read;
while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
{
ms.Write(buffer, 0, read);
}
return ms.ToArray();
}
}
Fail Code
using (Stream str = opd.File.OpenRead())
{
BitmapImage bitmapImage = new BitmapImage();
bitmapImage.SetSource(str);
image.Tag = bitmapImage.UriSource.ToString();
image.Source = bitmapImage;
image.Width = width;
image.Height = height;
image.Stretch = Stretch.Uniform;
container.Child = image;
rtb.Selection.Insert(container);
ServiceReference1.webWordWebServiceClient s = new ServiceReference1.webWordWebServiceClient();
byte[] bb = ReadFully(str);
s.saveImageCompleted += new EventHandler<ServiceReference1.saveImageCompletedEventArgs>(s_saveImageCompleted);
s.saveImageAsync(bb, "gungorrrr");
}
Successfull Code
using (Stream str = opd.File.OpenRead())
{
byte[] bb = ReadFully(str);
BitmapImage bitmapImage = new BitmapImage();
bitmapImage.SetSource(str);
image.Tag = bitmapImage.UriSource.ToString();
image.Source = bitmapImage;
image.Width = width;
image.Height = height;
image.Stretch = Stretch.Uniform;
container.Child = image;
rtb.Selection.Insert(container);
ServiceReference1.webWordWebServiceClient s = new ServiceReference1.webWordWebServiceClient();
(bitmapImage);
s.saveImageCompleted += new EventHandler<ServiceReference1.saveImageCompletedEventArgs>(s_saveImageCompleted);
s.saveImageAsync(bb, "gungorrrr");
}
Link: http://forums.silverlight.net/forums/p/234126/576070.aspx#576070