private void PopulateMessageBox()
    {
        try
        {
            //int totalRecords;
            //string numberOfRows = "10";
            //string pageIndex = "1";
            //string sortColumnName = "CreatedDate";
            //string sortOrderBy = "desc";
            //Collection<User> users = GetUsers(numberOfRows, pageIndex, sortColumnName, sortOrderBy, out totalRecords);
            User u = (User)Session["CurrentUser"];
            int OID = (u!=null)?u.UserOID:0;

            MessageCenter mess = new MessageCenter();
            GridViewMessageBox.DataSource = mess.GetMessageByUser(OID);//mess.GetMessages(numberOfRows, pageIndex, sortColumnName, sortOrderBy, out totalRecords);
            GridViewMessageBox.DataBind();

        }
        catch (Exception ex)
        { }
    }