public static HtmlString PagedList(this IHtmlHelper helper, int pageIndex, int totalPages, Func <int, string> page, QPageOptions options)
{
return(new HtmlString(Generate(pageIndex, totalPages, page, options)));
}
private static List <TagBuilder> GetPageListItems(int pageIndex, int totalPages, Func <int, string> page, QPageOptions options)
{
var Items = new List <TagBuilder>();
int perPage = GetItemPerPage();
pageIndex = pageIndex == 0 ? 1 : pageIndex;
int allPages = totalPages / perPage;
int start = (pageIndex / perPage) * GetItemPerPage();
start = start == totalPages ? start - perPage : start;
int end = start + perPage;
if (end > allPages)
{
end = allPages;
}
if (HasPrevPage(pageIndex))
{
Items.Add(GetPrevPage(options.PrevPageTitle, page(pageIndex - 1)));
}
if (end - start > GetItemPerPage())
{
end = start + GetItemPerPage();
}
if (start == 0)
{
start = 1;
}
if ((totalPages % perPage) > 0 && (allPages * perPage) < totalPages)
{
end++;
}
for (int i = start; i <= end; i++)
{
var li = GenerateItem(i.ToString(), page(i));
if (i == pageIndex)
{
li.AddCssClass("active");
}
Items.Add(li);
}
if (HasNextPage(pageIndex, totalPages))
{
Items.Add(GetNextPage(options.NextPageTitle, page(pageIndex + 1)));
}
return(Items);
}
private static string Generate(int pageIndex, int totalPages, Func <int, string> page, QPageOptions options)
{
var Items = GetPageListItems(pageIndex, totalPages, page, options);
var ul = new TagBuilder("ul");
ul.AddCssClass("pagination");
var ItemsString = Items.Aggregate(
new StringBuilder(),
(sb, listItem) => sb.Append(TagBuilderToString(listItem)),
sb => sb.ToString());
ul.InnerHtml.AppendHtml(ItemsString);
return(TagBuilderToString(ul));
}
