Dynamically handle images from the DB in ImageHandler.ashx.cs

Question

I am working on a blog site. The user can 'browse' through a FileUpload control and select multiple images to be uploaded along with their post. Each post has a unique Message ID in the DB. I have figured out how to insert all of the uploaded files into the DB under one message ID like this: (I insert them as data type 'image')

 try
            {
                conn.Open();
                SqlCommand cmdInsert = new SqlCommand("INSERT INTO BlogMessages (Title, Message, Date, Author, IPAddress) VALUES (@Title, @Message, @Date, @Author, @IPAddress)", conn);
                cmdInsert.Parameters.AddWithValue("@Title", tbTitle.Text.Trim());
                cmdInsert.Parameters.AddWithValue("@Message", tbMessage.Text.Trim());
                cmdInsert.Parameters.AddWithValue("@Date", DateTime.Now);
                cmdInsert.Parameters.AddWithValue("@Author", tbAuthor.Text.Trim());
                cmdInsert.Parameters.AddWithValue("@IPAddress", ip);
                cmdInsert.ExecuteNonQuery();

                if (imageUpload.HasFiles)
                {
                    System.Text.StringBuilder sb = new System.Text.StringBuilder();
                    HttpPostedFile file;

                    SqlCommand maxMessId = new SqlCommand("SELECT Max(MessageID) FROM BlogMessages", conn);
                    lastMessageID = Convert.ToInt32(maxMessId.ExecuteScalar());

                    foreach (var uploadedFile in imageUpload.PostedFiles)
                    {
                        file = uploadedFile; 
                        MemoryStream ms = new MemoryStream();
                        file.InputStream.CopyTo(ms);
                        byte[] byts = ms.ToArray();
                        ms.Dispose();

                        SqlCommand cmdInsertImage = new SqlCommand("INSERT INTO BlogImages(Image, MessageID) VALUES (@Image, @MessageID)", conn);
                        cmdInsertImage.Parameters.AddWithValue("@Image", SqlDbType.Image).Value = byts;
                        cmdInsertImage.Parameters.AddWithValue("@MessageID", lastMessageID);
                        cmdInsertImage.ExecuteNonQuery();
                        byts = null;
                        cmdInsertImage = null; 


                    }

                }

However, I am having trouble dynamically retrieving the images for display in my ImageHandler. It seems that I am able to get all of the images under a specific MessageID and insert them into a dataset, but after that is what I am looking for guidance on, and I have not been able to come up with a working solution through research thus far. Here is the relevant code inside public void Process Request of ImageHandler.ashx.cs:

  try
            {
                int messageid = Convert.ToInt32(context.Request.QueryString["mid"]);

                SqlDataAdapter sda = new SqlDataAdapter("SELECT Image from BlogImages WHERE Image IS NOT NULL AND MessageID=" + messageid, conn);
                System.Data.DataSet data = new DataSet();
                sda.Fill(data);


                if (data !=null)
                {

                    byte[] result = (byte[])data.Tables[0].Rows[0]["ImageContent"];
                    result.Initialize();
                    context.Response.ContentType = data.Tables[0].Rows[0]["ImageExt"].ToString();
                    context.Response.BinaryWrite(result);

                }
                else
                {
                    context.Response.WriteFile("No Image");
                }
            }

Thank you!