Display image on C# web page through ms-access

[nudma]

Hi everyone!!
I m trying to display jpg image from ms-access database on C# web page. Image is stored as OLE object under "img_stream" variable in database. Here is my code:

String connStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + HttpContext.Current.Server.MapPath("App_Data/db1.mdb");
 
        // Object created for Oledb Connection
        OleDbConnection myAccessConnection;
 
        protected void openAccessConnection()
        {
            // If condition that can be used to check the access database connection
            // whether it is already open or not.
            if (myAccessConnection.State == ConnectionState.Closed)
            {
                myAccessConnection.Open();
            }
        }
 
        protected void closeAccessConnection()
        {
            // If condition to check the access database connection state
            // If it is open then close it.
            if (myAccessConnection.State == ConnectionState.Open)
            {
                myAccessConnection.Close();
            }
 
        }
 
   private void Page_Load(object sender, System.EventArgs e)
   {
        // Put user code to initialize the page here
       myAccessConnection = new OleDbConnection(connStr);
       openAccessConnection();
       OleDbCommand myCommand = new OleDbCommand("select    img_stream from tblImg where img_id=4", myAccessConnection);
      //OleDbParameter img_id = new OleDbParameter("4", OleDbType.Integer);
     //myCommand.Parameters.Add(img_id);
      OleDbDataReader reader = myCommand.ExecuteReader();
      if(reader.Read())
      {
         Response.ContentType = "image/jpeg";
         byte[] imageContent = (byte[])(reader["img_stream"]);
         ms.Write(imageContent, 0, imageContent.Length);
         Bitmap bmp = null;
         bmp = new Bitmap(ms);
         bmp.Save(Response.OutputStream, ImageFormat.Jpeg);
         ms.Close();
         closeAccessConnection();
     }
     else
     {
        closeAccessConnection();
     }
}

On executing code i get the following error:
"Invalid Parameter Used"
Error is at: bmp = new Bitmap(ms);
Please help me to resolve this problem. I will highly obliged as i have passed so much time in finding and resolving this error but no way out :-(

[Curtis Rutland]

Where did you define ms?

[nudma]

Where did you define ms?

I'm sorry that got deleted by me, by mistake...Here it is:
if(reader.Read())
{
MemoryStream ms = new MemoryStream();
Response.ContentType = "image/jpeg";
byte[] imageContent = (byte[])(reader["img_stream"]);
ms.Write(imageContent, 0, imageContent.Length);
Bitmap bmp;
bmp = new Bitmap(ms);
bmp.Save(Response.OutputStream, ImageFormat.Jpeg);
ms.Close();
closeAccessConnection();
}
else
{
closeAccessConnection();
}
Please check it out and help me out to resolve my error...

[nudma]

I'm sorry that got deleted by me, by mistake...Here it is:
if(reader.Read())
{
MemoryStream ms = new MemoryStream();
Response.ContentType = "image/jpeg";
byte[] imageContent = (byte[])(reader["img_stream"]);
ms.Write(imageContent, 0, imageContent.Length);
Bitmap bmp;
bmp = new Bitmap(ms);
bmp.Save(Response.OutputStream, ImageFormat.Jpeg);
ms.Close();
closeAccessConnection();
}
else
{
closeAccessConnection();
}
Please check it out and help me out to resolve my error...

Dear All!!
I m still solution less..Please help me...