MVCPagerMethod.cs

public static class ExtensionMethods
{
  /// <summary>
  /// Creates paginated links
  /// </summary>
  /// <param name="helper">HtmlHelper class that can provide access to helpful functionality</param>
  /// <param name="startPage">Starting page (most likely 1)</param>
  /// <param name="currentPage">Number of the current page</param>
  /// <param name="totalPages">Number of total pages</param>
  /// <param name="pagesToShow">Number of pages to show forward and backward</param>
  /// <param name="currentPageUrlParameter">URL Parameter that sets the current page</param>
  public static MvcHtmlString Pager(this HtmlHelper helper, int startPage, int currentPage, int totalPages, int pagesToShow, string currentPageUrlParameter)
  {
    System.Web.Routing.RouteData routeData = helper.ViewContext.RouteData;
    string actionName =  routeData.GetRequiredString("action");
    string controller = routeData.GetRequiredString("controller");

    System.Web.Routing.RouteValueDictionary values = routeData.Values;
    if (!values.ContainsKey(currentPageUrlParameter))
      values.Add(currentPageUrlParameter, currentPage);
    bool started = false;
    StringBuilder html = Enumerable.Range(startPage, totalPages)  /* Create a list from the first page to the last page */
    .Where(i => (currentPage - pagesToShow) < i & i < (currentPage + pagesToShow))  /* filter the list to just the pages we want to show */
    .Aggregate(new StringBuilder(@"<div class=""pager"">"), (seed, page) =>
      {

         /* run through the list of pages and create the string of page numbers */
        values["page"] = page;
        string style = "pagerPage";
        if (page == startPage)
          style += " firstPage";
        if (page == totalPages)
          style += " lastPage";
        var htmlDic = new Dictionary<string, object>();
        htmlDic.Add("style", style);

        if (started)
          seed.Append("&nbsp;|&nbsp;");
        else
          started = true;

        if (page == currentPage)
          seed.AppendFormat("<span style="pagerPage currentPage">{0}</span>", page);
        else
           seed.Append(helper.ActionLink(page.ToString(), actionName, controller, values, htmlDic).ToHtmlString());
        return seed;
      });
    html.Append(@"</div>");

    return MvcHtmlString.Create(html.ToString());
  }
}