public class ImagesFromDatabase{
   string MyimageFilename = null;
   byte[] MyimageBytes = null;

   SqlConnection MySqlConnection = null;
   SqlCommand MySqlCommand = null;
   SqlDataReader MySqlDataReader = null;

   public ImagesFromDatabase() {
      MySqlConnection = new SqlConnection("Your Connection String");
      MySqlCommand = new SqlCommand(@"select MyFileName, MyFileData from MyTable", MySqlConnection);

      MySqlConnection.Open();
      MySqlDataReader = MySqlCommand.ExecuteReader();
   }

   public Bitmap GetImage() {
      MemoryStream MyMemoryStream = new MemoryStream(MyimageBytes);
      Bitmap MyBitmap = new Bitmap(MyMemoryStream);
      return MyBitmap;
   }

   public string GetFilename() {
      return MyimageFilename;
   }

   public bool HaveImages() {
      if (MySqlDataReader.Read()) {
        MyimageFilename = (string) MySqlDataReader.GetValue(0);
        MyimageBytess = (byte[]) MySqlDataReader.GetValue(1);
        return true;
      }else {
        return false;
      }
   }

   public void CloseObjects() {
      MySqlDataReader.Close();
      MySqlConnection.Close();
   }
}

ImagesFromDatabase MyImages= new ImagesFromDatabase();
if (MyImages.HaveImages()) {
    this.textBox1.Text = MyImages.GetFilename();
    this.pictureBox1.Image = (Image) MyImages.GetImage();
}
MyImages.CloseObjects()