Merge remote-tracking branch 'origin/master'

Author: a-gubskiy

examples/X.PagedList.Mvc.Example.Core/Views/Bootstrap41/_NameListPartial.cshtml

@@ -15,4 +15,20 @@
     }
 </ul>
 
-@Html.PagedListPager((IPagedList<string>)ViewBag.Names, page => Url.Action("GetOnePageOfNames", new { page }), PagedListRenderOptions.EnableUnobtrusiveAjaxReplacing(new PagedListRenderOptions { MaximumPageNumbersToDisplay = 5, DisplayPageCountAndCurrentLocation = true, UlElementClasses = new[] { "pagination" }, ContainerDivClasses = new[] { "pagination-container" } }, new AjaxOptions() { HttpMethod = "GET", UpdateTargetId = "nameListContainer" }))
+@Html.PagedListPager(
+    (IPagedList<string>)ViewBag.Names, 
+    page => Url.Action("GetOnePageOfNames", new { page }), 
+    PagedListRenderOptions.EnableUnobtrusiveAjaxReplacing(
+        new PagedListRenderOptions
+        {
+            MaximumPageNumbersToDisplay = 5,
+            DisplayPageCountAndCurrentLocation = true,
+            UlElementClasses = new[] { "pagination" },
+            ContainerDivClasses = new[] { "pagination-container" }
+        },
+        new AjaxOptions()
+        {
+            HttpMethod = "GET",
+            UpdateTargetId = "nameListContainer"
+        })
+    )

src/X.PagedList.Mvc.Core/Common/HtmlHelper.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Linq;
 using System.Text;
 
@@ -270,8 +271,10 @@ private ITagBuilder NextEllipsis(IPagedList list, Func<int, string> generatePage
 
     #endregion Private methods
 
-    public string PagedListPager(IPagedList list, Func<int, string> generatePageUrl, PagedListRenderOptions options)
+    public string PagedListPager(IPagedList pagedList, Func<int, string> generatePageUrl, PagedListRenderOptions options)
     {
+        var list = pagedList ?? new StaticPagedList<int>(ImmutableList<int>.Empty, 1, 10, 0);
+        
         if (options.Display == PagedListDisplayMode.Never || (options.Display == PagedListDisplayMode.IfNeeded && list.PageCount <= 1))
         {
             return null;