///<summary>
/// Displays a configurable paging control for instances of PagedList.
///</summary>
///<param name = "html">This method is meant to hook off HtmlHelper as an extension method.</param>
///<param name = "list">The PagedList to use as the data source.</param>
///<param name = "generatePageUrl">A function that takes the page number of the desired page and returns a URL-string that will load that page.</param>
///<param name = "options">Formatting options.</param>
///<returns>Outputs the paging control HTML.</returns>
public static MvcHtmlString PageCurrentPage(this HtmlHelper html,
IPagedList list,
Func <int, object> getRouteValues,
PagedListRenderOptions options)
{
if (list.PageCount <= 1 && options.HideIf1Page)
{
return(MvcHtmlString.Create(" "));
}
var listItemLinks = new StringBuilder();
//first
if (options.DisplayLinkToFirstPage)
{
listItemLinks.Append(First(html, list, getRouteValues, options.LinkToFirstPageFormat));
}
//previous
if (options.DisplayLinkToPreviousPage)
{
listItemLinks.Append(Previous(html, list, getRouteValues, options.LinkToPreviousPageFormat));
}
//text
if (options.DisplayPageCountAndCurrentLocation)
{
listItemLinks.Append(PageCountAndLocationText(list, options.PageCountAndCurrentLocationFormat));
}
//text
if (options.DisplayItemSliceAndTotal)
{
listItemLinks.Append(ItemSliceAndTotalText(list, options.ItemSliceAndTotalFormat));
}
//page
if (options.DisplayLinkToIndividualPages)
{
//calculate start and end of range of page numbers
int start = 1;
int end = list.PageCount;
if (options.MaximumPageNumbersToDisplay.HasValue && list.PageCount > options.MaximumPageNumbersToDisplay)
{
int maxPageNumbersToDisplay = options.MaximumPageNumbersToDisplay.Value;
start = list.PageNumber - maxPageNumbersToDisplay / 2;
if (start < 1)
{
start = 1;
}
end = maxPageNumbersToDisplay;
if ((start + end - 1) > list.PageCount)
{
start = list.PageCount - maxPageNumbersToDisplay + 1;
}
}
//if there are previous page numbers not displayed, show an ellipsis
if (options.DisplayEllipsesWhenNotShowingAllPageNumbers && start > 1)
{
listItemLinks.Append(Ellipses(options.EllipsesFormat));
}
foreach (int i in Enumerable.Range(start, end))
{
//show delimiter between page numbers
if (i > start && !string.IsNullOrWhiteSpace(options.DelimiterBetweenPageNumbers))
{
listItemLinks.Append(options.DelimiterBetweenPageNumbers);
}
//show page number link
listItemLinks.Append(options.FunctionToDisplayEachPageNumber == null
? Page(html, i, list, getRouteValues,
options.LinkToIndividualPageFormat)
: Page(html, i, list, getRouteValues,
options.FunctionToDisplayEachPageNumber));
}
//if there are subsequent page numbers not displayed, show an ellipsis
if (options.DisplayEllipsesWhenNotShowingAllPageNumbers && (start + end - 1) < list.PageCount)
{
listItemLinks.Append(Ellipses(options.EllipsesFormat));
}
}
//next
if (options.DisplayLinkToNextPage)
{
listItemLinks.Append(Next(html, list, getRouteValues, options.LinkToNextPageFormat));
}
//last
if (options.DisplayLinkToLastPage)
{
listItemLinks.Append(Last(html, list, getRouteValues, options.LinkToLastPageFormat));
}
var ul = new TagBuilder("ul")
{
InnerHtml = listItemLinks.ToString()
};
ul.AddCssClass("pagination"); //bootstrap3
var div = new TagBuilder("div")
{
InnerHtml = ul.ToString()
};
div.AddCssClass("pagination"); //bootstrap2
return(new MvcHtmlString(div.ToString()));
}
///<summary>
/// Displays a configurable paging control for instances of PagedList.
///</summary>
///<param name = "html">This method is meant to hook off HtmlHelper as an extension method.</param>
///<param name = "list">The PagedList to use as the data source.</param>
///<param name = "generatePageUrl">A function that takes the page number of the desired page and returns a URL-string that will load that page.</param>
///<param name = "options">Formatting options.</param>
///<returns>Outputs the paging control HTML.</returns>
public static MvcHtmlString PageCurrentPage(this HtmlHelper html,
IPagedList list,
Func<int, object> getRouteValues,
PagedListRenderOptions options)
{
if (list.PageCount <= 1 && options.HideIf1Page)
return MvcHtmlString.Create(" ");
var listItemLinks = new StringBuilder();
//first
if (options.DisplayLinkToFirstPage)
listItemLinks.Append(First(html, list, getRouteValues, options.LinkToFirstPageFormat));
//previous
if (options.DisplayLinkToPreviousPage)
listItemLinks.Append(Previous(html, list, getRouteValues, options.LinkToPreviousPageFormat));
//text
if (options.DisplayPageCountAndCurrentLocation)
listItemLinks.Append(PageCountAndLocationText(list, options.PageCountAndCurrentLocationFormat));
//text
if (options.DisplayItemSliceAndTotal)
listItemLinks.Append(ItemSliceAndTotalText(list, options.ItemSliceAndTotalFormat));
//page
if (options.DisplayLinkToIndividualPages)
{
//calculate start and end of range of page numbers
int start = 1;
int end = list.PageCount;
if (options.MaximumPageNumbersToDisplay.HasValue && list.PageCount > options.MaximumPageNumbersToDisplay)
{
int maxPageNumbersToDisplay = options.MaximumPageNumbersToDisplay.Value;
start = list.PageNumber - maxPageNumbersToDisplay / 2;
if (start < 1)
start = 1;
end = maxPageNumbersToDisplay;
if ((start + end - 1) > list.PageCount)
start = list.PageCount - maxPageNumbersToDisplay + 1;
}
//if there are previous page numbers not displayed, show an ellipsis
if (options.DisplayEllipsesWhenNotShowingAllPageNumbers && start > 1)
listItemLinks.Append(Ellipses(options.EllipsesFormat));
foreach (int i in Enumerable.Range(start, end))
{
//show delimiter between page numbers
if (i > start && !string.IsNullOrWhiteSpace(options.DelimiterBetweenPageNumbers))
listItemLinks.Append(options.DelimiterBetweenPageNumbers);
//show page number link
listItemLinks.Append(options.FunctionToDisplayEachPageNumber == null
? Page(html, i, list, getRouteValues,
options.LinkToIndividualPageFormat)
: Page(html, i, list, getRouteValues,
options.FunctionToDisplayEachPageNumber));
}
//if there are subsequent page numbers not displayed, show an ellipsis
if (options.DisplayEllipsesWhenNotShowingAllPageNumbers && (start + end - 1) < list.PageCount)
listItemLinks.Append(Ellipses(options.EllipsesFormat));
}
//next
if (options.DisplayLinkToNextPage)
listItemLinks.Append(Next(html, list, getRouteValues, options.LinkToNextPageFormat));
//last
if (options.DisplayLinkToLastPage)
listItemLinks.Append(Last(html, list, getRouteValues, options.LinkToLastPageFormat));
var ul = new TagBuilder("ul")
{
InnerHtml = listItemLinks.ToString()
};
ul.AddCssClass("pagination"); //bootstrap3
var div = new TagBuilder("div")
{
InnerHtml = ul.ToString()
};
div.AddCssClass("pagination"); //bootstrap2
return new MvcHtmlString(div.ToString());
}
