// Load ra danh sách các contact bằng IDLang
        public void Sel_Ext_ByCode(HttpContext context)
        {
            String jSonString = "";

            string Code = context.Request.QueryString["Code"] != null && context.Request.QueryString["Code"] != "undefined" ? context.Request.QueryString["Code"] : "";
            int IDLang = context.Request.QueryString["IDLang"] != null && context.Request.QueryString["IDLang"] != "undefined" ? int.Parse(context.Request.QueryString["IDLang"]) : 1;

            bool Disable = !String.IsNullOrEmpty(context.Request.QueryString["Disable"]) ? Convert.ToBoolean(context.Request.QueryString["Disable"]) : false;

            int IntroLenght = context.Request.QueryString["IntroLenght"] != null && context.Request.QueryString["IntroLenght"] != "undefined" ? int.Parse(context.Request.QueryString["IntroLenght"]) : -1;
            int TitleLenght = context.Request.QueryString["TitleLenght"] != null && context.Request.QueryString["TitleLenght"] != "undefined" ? int.Parse(context.Request.QueryString["TitleLenght"]) : -1;
            int Limit = context.Request.QueryString["Limit"] != null && context.Request.QueryString["Limit"] != "undefined" ? int.Parse(context.Request.QueryString["Limit"]) : 50;
            string Order = context.Request.QueryString["Order"] != null && context.Request.QueryString["Order"] != "undefined" ? context.Request.QueryString["Order"] : "CategoryLevel1_ID";
            bool IsDesc = context.Request.QueryString["IsDesc"] != null && context.Request.QueryString["IsDesc"] != "undefined" ? bool.Parse(context.Request.QueryString["IsDesc"]) : true;

            CategoryLevel1BO aCategoryLevel1BO = new CategoryLevel1BO();
            List<vw_CategoryLevel1ViewAll> obj = String.IsNullOrEmpty(context.Request.QueryString["Disable"]) ?
                aCategoryLevel1BO.Sel_Ext_ByCode(Code) : aCategoryLevel1BO.Sel_Ext_ByCode(Code, Disable);
            List<vw_CategoryLevel1ViewAll> ObjOrder = new List<vw_CategoryLevel1ViewAll>();

            switch (Order)
            {
                case "CategoryLevel1_Code":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CategoryLevel1_Code).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CategoryLevel1_Code).ToList();
                    }
                    break;

                case "CategoryLevel2_Code":
                    if (IsDesc ==false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CategoryLevel2_Code).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CategoryLevel2_Code).ToList();
                    }
                    break;

                case "CountContentDisable":
                    if (IsDesc ==false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CountContentDisable).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CountContentDisable).ToList();
                    }
                    break;
                case "CountContentEnable":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CountContentEnable).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CountContentEnable).ToList();
                    }
                    break;
                case "CountContent":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CountContent).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CountContent).ToList();
                    }
                    break;
                case "CategoryLevel2_Status":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CategoryLevel2_Status).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CategoryLevel2_Status).ToList();
                    }
                    break;
                case "CategoryLevel2_ID":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CategoryLevel2_ID).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CategoryLevel2_ID).ToList();
                    }
                    break;
                case "CategoryLevel1_ViewCount":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CategoryLevel1_ViewCount).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CategoryLevel1_ViewCount).ToList();
                    }
                    break;
                case "CategoryLevel1_Type":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CategoryLevel1_Type).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CategoryLevel1_Type).ToList();
                    }
                    break;
                case "CategoryLevel1_Status":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CategoryLevel1_Status).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CategoryLevel1_Status).ToList();
                    }
                    break;
                case "CategoryLevel1_ID":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CategoryLevel1_ID).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CategoryLevel1_ID).ToList();
                    }
                    break;
                case "CategoryLevel1_CategoryLevel2_Disable":
                    if (IsDesc == false)
                    {
                        ObjOrder = obj.OrderBy(a => a.CategoryLevel1_CategoryLevel2_Disable).ToList();
                    }
                    else
                    {
                        ObjOrder = obj.OrderByDescending(a => a.CategoryLevel1_CategoryLevel2_Disable).ToList();
                    }
                    break;
                default:
                    ObjOrder = obj;
                    break;
            }

            for (int i = 0; i < ObjOrder.Count; i++)
            {
                if ((TitleLenght > -1) & (ObjOrder[i].CategoryLevel1_CategoryNameLevel1.Length > TitleLenght))
                {
                    ObjOrder[i].CategoryLevel1_CategoryNameLevel1 = ObjOrder[i].CategoryLevel1_CategoryNameLevel1.Substring(0, TitleLenght - 1);
                }
                if ((IntroLenght > -1) & (ObjOrder[i].CategoryLevel1_Info.Length > IntroLenght))
                {
                    ObjOrder[i].CategoryLevel1_Info = ObjOrder[i].CategoryLevel1_Info.Substring(0, IntroLenght - 1);
                }
            }
            List<vw_CategoryLevel1ViewAll> ObjOrderLimit = new List<vw_CategoryLevel1ViewAll>();
            if ((Limit > -1) & (ObjOrder.Count > Limit))
            {
                ObjOrderLimit = ObjOrder.GetRange(0, Limit).ToList();
                _converter.DateTimeFormat = "dd/MM/yyyy";
                jSonString = JsonConvert.SerializeObject(ObjOrderLimit, _converter);
            }
            else
            {
                if (ObjOrder != null)
                {
                    _converter.DateTimeFormat = "dd/MM/yyyy";
                    jSonString = JsonConvert.SerializeObject(ObjOrder, _converter);
                }
            }
            jSonString = "{\"CategoryLevel1\":" + jSonString + "}";
            context.Response.Write(jSonString);
        }