Retrieving images from PHP to Silverlight using webClient OpenReadAsync

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Silverlight

hi all

I am building a website Silverlight - PHP - Sql Server
and i need to save and retrieve images from the server.
Saving images from the Silverlight app works fine
and retrieving from the server to PHP also works
( i write the image to a file and it is fine)
but when i try to read from the PHP to the app
i get a few extra bytes and it's not recognised as an image.

the code is :

private void btnPhoto_Click(object sender, System.Windows.RoutedEventArgs e)
        {
            Random random = new Random();
            WebClient webClient = new WebClient();
            webClient.OpenReadCompleted += new OpenReadCompletedEventHandler(download_OpenReadCompleted);
            Uri myUri = new Uri("http://servername/PHP/GetUserPhoto.php?userID=1" + "&sid=" + random.Next(), UriKind.RelativeOrAbsolute);
            webClient.OpenReadAsync(myUri, "GET");
        }
        void download_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
        {
            if ((e.Cancelled != true) || (e.Result != null))
            {
                Stream stream = e.Result;
                BitmapImage loadedImage = new BitmapImage();
                stream.Position = 0;
                loadedImage.SetSource(e.Result);
                smallImage.Source = loadedImage;
            }
        } 

the error is on the line

loadedImage.SetSource(e.Result);

{System.Exception: Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))
   at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
   at MS.Internal.XcpImports.BitmapSource_SetSource(BitmapSource bitmapSource, CValue& byteStream)
   at System.Windows.Media.Imaging.BitmapSource.SetSourceInternal(Stream streamSource)
   at System.Windows.Media.Imaging.BitmapImage.SetSourceInternal(Stream streamSource)
   at System.Windows.Media.Imaging.BitmapSource.SetSource(Stream streamSource)
   at SilverlightApplication13.MainPage.downloader_OpenReadCompleted(Object sender, OpenReadCompletedEventArgs e)
   at System.Net.WebClient.OnOpenReadCompleted(OpenReadCompletedEventArgs e)
   at System.Net.WebClient.OpenReadOperationCompleted(Object arg)}

the stream i get back is 947 bytes - it should be 942 bytes

does anyone have any ideas what i am doing wrong




the php code is:

<?php
$spUserID = $_GET["userID"];

$serverName = "(local)";
$connectionOptions = array('Database'=>'dbname');

$conn = sqlsrv_connect( $serverName, $connectionOptions);

if( $conn === false )  {
    echo "error: " . sqlsrv_errors();
}

else {

    $tsql = "select imageData from images where userID = " . $spUserID;
    $stmt = sqlsrv_query($conn, $tsql );
    $result = sqlsrv_fetch( $stmt );
    $stream = sqlsrv_get_field( $stmt, 0, SQLSRV_PHPTYPE_STREAM(SQLSRV_ENC_BINARY));

    $imgfile = fopen("UploadedImages/debug3.png", "w");
    while( !feof( $stream))
    {
        $str = fread( $stream, 2048);
        $str = fread( $stream, 2048);
        fwrite($imgfile, $str);
        echo $str;
    }
    fclose($imgfile);
}
sqlsrv_free_stmt( $strSql );
sqlsrv_close( $conn );
?>