public void Can_generate_links_to_other_pages()
{
HtmlHelper html = null;
var paging = new PagingInfo
{
CurrentPage = 2,
TotalItems = 28,
ItemsPerPage = 10,
};
Func<int, string> url = i => "Page" + i;
MvcHtmlString result = html.PageLinks(paging, url);
Assert.AreEqual(result.ToString(),
@"<ul>
<li>
<a href=""Page1"">1</a>
</li>
<li class=""selected"">
<a href=""Page2"">2</a>
</li>
<li>
<a href=""Page3"">3</a>
</li>
</ul>");
}
public static MvcHtmlString PageLinks(this HtmlHelper html,
PagingInfo pagingInfo,
Func<int, string> pageUrl, object attributes = null)
{
var xml = new XElement("ul",
// Add any root attributes
from kvp in new RouteValueDictionary(attributes)
select new XAttribute(kvp.Key, kvp.Value),
// Add an li for each page
from i in Enumerable.Range(1, pagingInfo.TotalPages)
select new XElement("li",
i == pagingInfo.CurrentPage? new XAttribute("class", "selected"):null, // set the class attribute to "selected" for the current page
new XElement("a", new XAttribute("href", pageUrl(i)), i)
)
);
return MvcHtmlString.Create(xml.ToString());
}
public void PagingInfo_calculates_total_pages_correctly()
{
var pagingInfo = new PagingInfo { TotalItems = 27, ItemsPerPage = 10 };
Assert.AreEqual(pagingInfo.TotalPages, 3);
}