【asp.net mvc】 扩展 htmlhelper 实现分页

参考文档：http://www.cnblogs.com/caofangsheng/p/5670071.html

                 http://www.cnblogs.com/artech/archive/2012/03/13/code-binding.html

                 http://www.cnblogs.com/xqaizx/p/5565447.html

【asp.net core】 扩展 TagHelper 分页 :  http://www.cnblogs.com/wangrudong003/p/5705744.html

自定义分页类

using BooksStore.WebUI.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;

namespace BooksStore.WebUI.HtmlHelpers
{
    public static class PagingHelper
    {
        /// <summary>
        /// 创建分页html
        /// </summary>
        /// <param name="helper"></param>
        /// <param name="pagingInfo"></param>
        /// <param name="func"></param>
        /// <returns></returns>
        public static MvcHtmlString PageLinks(this HtmlHelper helper, PageInfo pagingInfo, Func<int, string> func)
        {
            var sb = new StringBuilder();
            for (var i = 1; i <= pagingInfo.TotalPages; i++)
            {
                //创建 <a> 标签
                var tagBuilder = new TagBuilder("a");
                //添加特性
                tagBuilder.MergeAttribute("href", func(i));
                //添加值
                tagBuilder.InnerHtml = i.ToString();

                if (i == pagingInfo.PageIndex)
                {
                    tagBuilder.AddCssClass("selected");
                }

                sb.Append(tagBuilder);
            }

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

   分页信息类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace BooksStore.WebUI.Models
{
    public class PageInfo
    {
        /// <summary>
        /// 总数
        /// </summary>
        public int TotalItems { get; set; }

        /// <summary>
        /// 页容量
        /// </summary>
        public int PageSize { get; set; }

        /// <summary>
        /// 当前页
        /// </summary>
        public int PageIndex { get; set; }

        /// <summary>
        /// 总页数
        /// </summary>
        public int TotalPages => (int)Math.Ceiling((decimal)TotalItems / PageSize);
    }
}

修改 Views 文件夹下 web.config，新增命名空间

在页面调用方式

  @Html.PageLinks(Model, x => Url.Action("Index", new { pageIndex = x , category = Model.CurrentCategory }))