protected void ShowListInContent()
        {
            int PortalId          = Convert.ToInt32(ddlPortalList.SelectedValue);
            int ContentItemId     = Convert.ToInt32(ddlContentItem.SelectedValue);
            List <aspnet_Tab> lst = TabController.GetListByPortalId_ContentItemId_IsSecure(PortalId, ContentItemId, true);

            ddlListInContent.Items.Clear();
            ddlListInContent.DataSource     = lst;
            ddlListInContent.DataTextField  = "TabName";
            ddlListInContent.DataValueField = "TabId";
            ddlListInContent.DataBind();
            ddlListInContent.Items.Insert(0, new ListItem("- Chọn -", "0"));
            ddlListInContent.SelectedIndex = 0;
        }