protected void Page_Load(object sender, EventArgs e)
{
int pageIndex, category, sort;
if (!Int32.TryParse(Request["page"], out pageIndex))
{
pageIndex = 1;
}
// pageIndex = pageIndex < 1 ? 1 : pageIndex;
//// pageIndex = pageIndex > pageCount ? pageCount : pageIndex;
CurrentPage = pageIndex;
if (!Int32.TryParse(Request["sort"], out sort))
{
sort = Convert.ToInt32(SortType.Default);
}
Sort = (SortType)sort;
switch (Sort)
{
case SortType.PriceDesc:
OrderField = "UnitPrice";
break;
case SortType.PriceAsc:
IsAsc = true;
OrderField = "UnitPrice";
break;
case SortType.SalesDesc:
OrderField = "PublishDate";
break;
case SortType.OnSaleDesc:
OrderField = "PublishDate";
break;
case SortType.CommentCountDesc:
OrderField = "PublishDate";
break;
}
Int32.TryParse(Request["cat"], out category);
if (category == 0)
{
// 没有分类
throw new HttpException(404, "Not Found");
//Response.Redirect("PageDoesNotExist.aspx");
//as this page will not be existing, it will fire the 404 error, which will redirect to the error page
}
//
CurrentCategory = catbll.QuerySingle(new { Id = category });
if (CurrentCategory == null)
{
// 没有分类
throw new HttpException(404, "Not Found");
//Response.Redirect("PageDoesNotExist.aspx");
}
// 确保有分类
var where = new { CategoryId = CurrentCategory.Id };
TotalCount = booksbll.QueryCount(where);
TotalPage = (int)Math.Ceiling(TotalCount / (double)pageSize);
ProductList = booksbll.QueryList(CurrentPage, pageSize, where, OrderField, !IsAsc);
}
