Clear PictureBox Image
pbMyImage.Image = null;
Display image from byte array
//Display the byte array
MemoryStream mStream = new MemoryStream();
mStream.Write(MyImageByteArray, 0, Convert.ToInt32(MyImageByteArray.Length));
Bitmap bm = new Bitmap(mStream, false);
mStream.Dispose();
pbNameImage.Image = bm;
Feel free to comment if you can add help to this page or point out issues and solutions you have found. I do not provide support on this site, if you need help with a problem head over to stack overflow.