How to retrieve a picture saved as binary data from the database i keep getting the error which says "Parameter is not valid."

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C#

here is my code: Thanks inadvance

private void button1_Click(object sender, EventArgs e)
       {
           SqlConnection con = new SqlConnection
                              (@"Data Source=CONA-A07\SQLEXPRESS;Initial Catalog=Pics;Integrated Security=True;Pooling=False");
           SqlCommand command = new SqlCommand
                               ("select PicName from Pictures where PicID =1", con);
           //for retrieving the image field in SQL SERVER EXPRESS
           //Database you should first bring
           //that image in DataList or DataTable
           //then add the content to the byte[] array.
           //That's ALL!
           SqlDataAdapter dp = new SqlDataAdapter(command);
           DataSet ds = new DataSet("Pictures");
           byte[] MyData = new byte[0];
           dp.Fill(ds, "Pictures");
           DataRow myRow;
           myRow = ds.Tables["Pictures"].Rows[0];
           MyData = (byte[])myRow["PicName"];
           MemoryStream stream = new MemoryStream(MyData);
           //With the code below, you are in fact converting the byte array of image
           //to the real image.
           pictureBox1.Image = Image.FromStream(stream,false ,true );
           //System.Drawing.Image returnImage = System.Drawing.Image.FromStream(ms, false, true);
       }

[edit]Code block added - OriginalGriff[/edit]
[edit2]Block end moved to get closing bracket on own line - OriginalGriff[/edit2]