// This method uploads the file
public void uploadFile(object sender, EventArgs e)
{
    string SaveLocation = "";
    string filename = "";
    int MAXFILESIZE = 10000;
    int MAXWIDTH = 60;
    int MAXHEIGHT = 60;
    float width, height;

 // Checks to see if there is a file to be uploaded

   if ((FileUpload1.PostedFile != null) && (FileUpload1.PostedFile.ContentLength > 0))
    {
       if (FileUpload1.PostedFile.ContentLength <= MAXFILESIZE)
        {
            SaveLocation = Server.MapPath(".") + "\\images\\profilepics\\";
            EnsureDirectory(new System.IO.DirectoryInfo(SaveLocation));
            filename = FileUpload1.PostedFile.ContentType;
            string[] filetype = filename.Split('/');
            filename = User.Identity.Name.ToUpper() + "." + filetype[1];
            SaveLocation = SaveLocation + "\\" + filename;
            string SaveLocationSQL = "images/profilepics/" + filename;
            FileUpload1.PostedFile.SaveAs(SaveLocation);

            Bitmap i = new Bitmap(SaveLocation);                  

            height = MAXHEIGHT;
            width = (height / i.Height) * i.Width; 

            if (width > MAXWIDTH)
             {
               height = (MAXHEIGHT / width) * height;

               width = MAXWIDTH;
             }

            i.Dispose();
            FileUpload1.Dispose();
            BSSUser u = new BSSUser();
            u.UserID = userid;
            u.PicUrl = SaveLocationSQL;
            u.PicHeight = Convert.ToInt32(height);
            u.PicWidth = Convert.ToInt32(width);
            u.changeProfilePic(u);
            Response.Redirect("MyAccount.aspx");
        }

     else
        {
            lblFileUpload.Text = "TOO LARGE - MAX SIZE IS 10KB";
            lblFileUpload.ForeColor = System.Drawing.Color.Red;
         }
   }

  // Returns null if there is no file to be uploaded
  else
    {
       Response.Redirect("Error.aspx");
    }
}

// checks if the directory exists. If not, it will create it
public void EnsureDirectory(System.IO.DirectoryInfo DirInfo)
{
   if (DirInfo.Parent != null)
       EnsureDirectory(DirInfo.Parent);
   if (!DirInfo.Exists)
     {
       DirInfo.Create();
     }
}