how to solve the problems when we upload files in server?

protected void btnnadd_Click(object sender, EventArgs e)
    {
       
        if (uploadcollogo.HasFile == true)
        {
            try
            {
                //string fileName = Server.HtmlEncode(uploadcollogo.FileName);
                    System.Drawing.Image image_file = System.Drawing.Image.FromStream(uploadcollogo.PostedFile.InputStream);
                    int image_height = image_file.Height;
                    int image_width = image_file.Width;
                    int max_height = 240;
                    int max_width = 320;
                    image_height = (image_height * max_width) / image_width;
                    image_width = max_width;
                    if (image_height > max_height)
                    {
                        image_width = (image_width * image_height) / image_width;
                        image_width = max_width;
                    }
                    Bitmap bitmap_file = new Bitmap(image_file, image_width, image_height);
                    System.IO.MemoryStream stream = new System.IO.MemoryStream();
                    bitmap_file.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);
                    stream.Position = 0;
                    byte[] image = new byte[stream.Length + 1];
                    stream.Read(image, 0, image.Length);
                    string fileName = Path.GetFileName(uploadcollogo.FileName);
                   // string image1 = "../userside/collogo/" + fileName;
                    string status = "Active";
                 SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["Connection"].ConnectionString);
                   // SqlConnection cn = new SqlConnection(ConfigurationManager.AppSettings["constring"].ToString());
                    cn.Open();
                    SqlCommand cmd = new SqlCommand();
                    cmd.CommandText = "pcolinsert";
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.Parameters.AddWithValue("@colname", txtcolname.Text);
                    cmd.Parameters.AddWithValue("@colmobile1", txtcolmobile1.Text);
                    cmd.Parameters.AddWithValue("@colmobile2", txtcolmobile2.Text);
                    cmd.Parameters.AddWithValue("@collandline", txtcollandline.Text);
                    cmd.Parameters.AddWithValue("@collemail1", txtcolemail.Text);
                    cmd.Parameters.AddWithValue("@colaltemail", txtcolaltemail.Text);
                    cmd.Parameters.AddWithValue("@coladdress", txtcoladdr.Text);
                    cmd.Parameters.AddWithValue("@colwebsite", txtcolwebsite.Text);
                    cmd.Parameters.AddWithValue("@colcountry", ddlcountry.SelectedItem.Text);
                    cmd.Parameters.AddWithValue("@colstate", ddlstate.SelectedItem.Text);
                    cmd.Parameters.AddWithValue("@colcity", txtcolcity.Text);
                    cmd.Parameters.AddWithValue("@collandmark", txtcollandmark.Text);
                    //cmd.Parameters.AddWithValue("@collogo", image);
                    cmd.Parameters.AddWithValue("@status", status);
                    SqlParameter UploadedImage = new SqlParameter("@collogo", SqlDbType.Image, image.Length);
                    UploadedImage.Value = image;
                    cmd.Parameters.Add(UploadedImage);
                    cmd.Connection = cn;
                    cmd.ExecuteNonQuery();
                    uploadcollogo.SaveAs(Server.MapPath("../userside/collogo/") + uploadcollogo.FileName);
                   // uploadcollogo.SaveAs(Server.MapPath(image1));
                    cn.Close();
                    clear();
                    Page.ClientScript.RegisterStartupScript(this.GetType(), "Inserted", "<script>alert('Record Inserted Sucessfuly')</script>");

                
            }