Пример #1
0
        public IActionResult Index(PageParameter pageParams)
        {
            PageDataResponse <BannerDto> pageData = new PageDataResponse <BannerDto>();
            var parameterExpression = System.Linq.Expressions.Expression.Parameter(typeof(Banner));
            var filter = (System.Linq.Expressions.Expression)System.Linq.Expressions.Expression.Constant(true);

            if (!string.IsNullOrEmpty(pageParams.Key))
            {
                pageParams.Key = pageParams.Key.Trim();
                filter         = (System.Linq.Expressions.Expression)System.Linq.Expressions.Expression.Constant(false);
                Guid guid = Guid.Empty;
                if (Guid.TryParse(pageParams.Key, out guid))
                {
                    filter = filter.GotoOrElse(parameterExpression.GotoEqual("ID", guid));
                }
            }
            else
            {
                filter = filter.GotoOrElse(parameterExpression.GotoNotEqual("ID", Guid.Empty));
            }
            if (pageParams.BeginTime != null && pageParams.EndTime != null && pageParams.BeginTime <= pageParams.EndTime)
            {
                filter = filter.GotoAndAlso(parameterExpression.GotoGreaterThanByDateTime("CreateTime", pageParams.BeginTime));
                filter = filter.GotoAndAlso(parameterExpression.GotoLessThanByDateTime("CreateTime", pageParams.EndTime));
            }
            var queryLambdaFilter = System.Linq.Expressions.Expression.Lambda <Func <Banner, bool> >(filter, parameterExpression);
            int Count;
            List <BannerDto> List = _BannerAppService.PageList(queryLambdaFilter, pageParams.PageSize, pageParams.CurPage, out Count);

            if (List.Any())
            {
                Guid[] langIds  = List.Select(a => a.LanguageTypeID).Distinct().ToArray();
                var    langList = _languageTypeAppService.QueryList(a => langIds.Contains(a.ID));
                foreach (var item in List)
                {
                    var temp = langList.FirstOrDefault(a => a.ID.Equals(item.LanguageTypeID));
                    if (temp != null)
                    {
                        item.LanguageTypeName = string.Format("{0}/{1}", temp.Code, temp.Title);
                    }
                    item.Image = Common.GetImgFullUrl(item.Image, Vic.Core.Utils.Enum.AM_Enum.ImgPathEnum.CmsImg, true);
                }
            }
            pageData.Data      = List;
            pageData.TotalItem = Count;
            pageData.QueryData = pageParams;
            pageData.PageHTML  = base.PageHtml(Count, pageParams.CurPage, pageParams.PageSize, this.HttpContext);
            return(View(pageData));
        }