ASP.NET MVC使用HTML辅助器实现分页

在mvc中可以利用扩展方法添加HTML辅助器方法实现分页，这样就可以方便的实现分页代码的复用，代码如下

   public static MvcHtmlString PageLinks(this HtmlHelper html, int curPage, int totalPage, Func<int, string> pageUrl)
        {
            StringBuilder result = new StringBuilder();
            int start = 1, end = totalPage;
            start = curPage - 5 < 1 ? 1 : curPage - 5;
            end = curPage + 5 > totalPage ? totalPage : curPage + 5;

            if (curPage > 1)
            {
                TagBuilder prev = new TagBuilder("a");
                prev.MergeAttribute("href", pageUrl(curPage - 1));
                prev.InnerHtml = "<";
                result.Append(prev.ToString());
            }


            for (int i = start; i <= end; i++)
            {
                TagBuilder tag = new TagBuilder("a");             
                tag.InnerHtml = i.ToString();
                if (i != curPage)
                {
                    tag.MergeAttribute("href", pageUrl(i));                  
                }
                else
                {
                    tag.MergeAttribute("href", "javascript:;");                  
                    tag.AddCssClass("active");
                }
                result.Append(tag.ToString());
            }

            if (curPage < totalPage)
            {
                TagBuilder next = new TagBuilder("a");
                next.MergeAttribute("href", pageUrl(curPage - 1));
                next.InnerHtml = ">";
                result.Append(next.ToString());
            }


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

添加以上代码后,这样在视图中创建分页链接时只需要简单的一行代码即可，如下所示,page为当前页，totalpage为总页数，第三个参数为生成的代码链接

@Html.PageLinks(page, totalPage, x => Url.Action("action", new { page=x；}))