ASP.Net Programing Laungage

protected void Button1_Click(object sender, EventArgs e)
    {
        int length = FileUpload1.PostedFile.ContentLength;
        byte[] pic = new byte[length];

         FileUpload1.PostedFile.InputStream.Read(pic, 0, length);
        // Insert the image and comment into the database

        SqlConnection con = new SqlConnection(@"data source=R4R-01
		                        \SQLEXPRESS;initial
 catalog=saveimage;integrated security=true");
        try
        {
            con.Open();
            SqlCommand cmd = new SqlCommand("insert into saveimage1 "
              + "(Picture, Comment) values (@a, @b)", con);
            cmd.Parameters.Add("@a", pic);
            cmd.Parameters.Add("@b", TextBox1.Text);
            cmd.ExecuteNonQuery();
        }
        finally
        {
            con.Close();
        }
    }

protected void Button2_Click(object sender, EventArgs e)
    {
        // Put user code to initialize the page here

        MemoryStream stream = new MemoryStream();
        SqlConnection con = new SqlConnection(@"data source=R4R-01\SQLEXPRESS;initial
 catalog=saveimage;integrated security=true");     
            con.Open();
            SqlCommand command = new SqlCommand("select picture from saveimage1",con);
            byte[] image = (byte[])command.ExecuteScalar();
         
            stream.Write(image, 0, image.Length);
            Bitmap bitmap = new Bitmap(stream);
            Response.ContentType = "image/gif";
            
      bitmap.Save(Response.OutputStream, ImageFormat.Gif);

      
    }