Question

i get image from client convert it to byte[] and send it to server. And convert byte[] to Base64String and insert into database.

And i do reverse to show image. But i cant see the image. Why???

//Convert to byte array
 public static byte[] ImageToByteArray(WriteableBitmap bitmap)

{
            int[] p = bitmap.Pixels;
            int len = p.Length << 2;
            byte[] result = new byte[len];
            Buffer.BlockCopy(p, 0, result, 0, len);
            return result;
}

//Converter
public object Convert(object value, Type targetType, object parameter,System.Globalization.CultureInfo culture)
        {
            if (value == null)
            {
                return null;
            }

            BitmapImage image = new BitmapImage();

            MemoryStream stream = new MemoryStream();
            stream.Write((byte[])value, 0, ((byte[])value).Length);
            image.SetSource(stream);


            return image;
        }

//While writing to database
else if (value.GetType() == typeof(byte[]))
            {
                return "'" + Convert.ToBase64String((byte[])value) + "'";
            }

else if ((type == typeof(byte[])))
            {
                return Convert.FromBase64String((string)value);
            }

Answer 1

I used BinaryReader and solved the problem.

My problem was not reading the image correct. iused BinaryReader to read the image and solved the problem.

                BinaryReader reader = new BinaryReader(fileInfo.OpenRead());

                byte[] tempImage = new byte[reader.BaseStream.Length];

                reader.Read(tempImage, 0, tempImage.Length);