DataTable dt = new DataTable();

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                BindRepeater();
                RepeaterMenu.DataSource = dt;
                RepeaterMenu.DataBind();
            }
        }

        public DataTable BindRepeater()
        {
            dt = new Select()
                    .From<CmsMenu>()
                    .Where(CmsMenu.PublishedColumn)
                    .IsEqualTo(true)
                    .And(CmsMenu.FooterMenuColumn)
                    .IsEqualTo(true)
                    .OrderAsc("sortOrder")
                    .ExecuteDataSet().Tables[0];

            return dt;
        }

Always forgetting this one!

int sortOrder;

//a sort order has been entered
if (Int32.TryParse(txtSortOrder.Text, out sortOrder))
    { }
     else
   {
       sortOrder = 0;
   }