private static TagBuilder GenerateLink(int page, PagingInfo pagingInfo)
{
string archive = "";
if (pagingInfo.Archive) archive = "&Archive=true";
TagBuilder tag = new TagBuilder("a");
tag.MergeAttribute("href", "?page="+page + archive);
tag.InnerHtml = page+"";
if (page == pagingInfo.CurrentPage) tag.AddCssClass("selected");
return tag;
}
public static MvcHtmlString PageLinks(this HtmlHelper html, PagingInfo pagingInfo, Func<int, string> pageUrl)
{
StringBuilder result = new StringBuilder();
if (pagingInfo.TotalPages < 6)
{
for (int i = 1; i <= pagingInfo.TotalPages; i++)
{
TagBuilder tag = GenerateLink(i, pagingInfo);
result.Append(tag.ToString());
}
return MvcHtmlString.Create(result.ToString());
}
else
{
TagBuilder tag = GenerateLink(1, pagingInfo);
result.Append(tag.ToString());
//Display dots if there is a gap between page 1 and n-2.
if (pagingInfo.CurrentPage - 4 > 0) result.Append("..");
//Dispaly links to n-2 n-1 n n+1 n+2
for (int i = pagingInfo.CurrentPage-2; i <= pagingInfo.CurrentPage+2; i++)
{
if (i > 1 && i < (pagingInfo.TotalPages))
{
tag = GenerateLink(i, pagingInfo);
result.Append(tag.ToString());
}
}
//Display dots if there is a gap between last page and n+2
if (pagingInfo.TotalPages - pagingInfo.CurrentPage > 3) result.Append("..");
tag = GenerateLink(pagingInfo.TotalPages, pagingInfo);
result.Append(tag.ToString());
return MvcHtmlString.Create(result.ToString());
}
}
public ActionResult Index(bool archive = false, int page = 1)
{
DateTime ArchiveDate = DateTime.Now;
var model = new EventsListViewModel();
int numberOfEvents = 0;
if (archive)
{
numberOfEvents = eventRepository.Events.Where(x => x.StartTime <= ArchiveDate).Count();
model.Events = eventRepository.Events.Where(x => x.StartTime <= ArchiveDate).OrderBy(x => x.Name).Skip((page - 1) * PageSize).Take(PageSize);
model.Archive = true;
}
else
{
numberOfEvents = eventRepository.Events.Where(x => x.StartTime >= ArchiveDate).Count();
model.Events = eventRepository.Events.Where(x => x.StartTime >= ArchiveDate).OrderBy(x => x.Name).Skip((page - 1) * PageSize).Take(PageSize);
}
PagingInfo pi = new PagingInfo
{
CurrentPage = page,
Archive = model.Archive,
ItemsPerPage = PageSize,
TotalItems = numberOfEvents
};
model.PagingInfo = pi;
return View(model);
}