ASP.NET MVC URL分页控件

效果图:

1、实体

using  System;

namespace  System.Web.Mvc
{
    public class MvcPagerModel
    {
        public int TotalRecords { get; set; } //页数

        public int PageIndex { get; set; }//分页索引

        public int PageSize { get; set; }//页码

        public bool StatisticHtml { get; set; }//是否显示HTML:string.Concat("<span>Pages: ", pageIndex, " / ", index, "</span>")

        public MvcPagerModel()
        {
            StatisticHtml = true;
        }
    }

}

2、分页

 

public   static   string  MvcPager( this  HtmlHelper html, MvcPagerModel data) {}  
public   static   string  MvcPager( this  HtmlHelper html, MvcPagerModel data,  object  values) {}  
public   static   string  MvcPager( this  HtmlHelper html, MvcPagerModel data,  string  action) {}  
public   static   string  MvcPager( this  HtmlHelper html, MvcPagerModel data,  string  action,  object  values) {}  
public   static   string  MvcPager( this  HtmlHelper html, MvcPagerModel data,  string  action,  string  controller,  object  values) {}  
public   static   string  MvcPager( this  HtmlHelper html, MvcPagerModel data, RouteValueDictionary values) {}  


public   static   string  MvcPager( this  HtmlHelper html, MvcPagerModel data,  string  action, RouteValueDictionary values)
{
      string controllerName = html.ViewContext.RouteData.GetRequiredString("controller");
      return MvcPager(html, data, action, controllerName, values);
 }


public   static   string  MvcPager( this  HtmlHelper html, MvcPagerModel data,  string  action,  string  controller, RouteValueDictionary routeValueDictionary)
         {
            RouteValueDictionary routeValueDic = ((routeValueDictionary == null) ? new RouteValueDictionary() : routeValueDictionary);

            StringBuilder stringBuilder = new StringBuilder();

            int pageIndex = data.PageIndex;//分页索引
            int totalRecords = data.TotalRecords;//总条数
            int pageSize = data.PageSize;//每页分页条数

            int index = CalculateTotalPages(totalRecords, pageSize);//分页数

            if (totalRecords > 0)
            {
                if (!pageIndex.Equals(1))
                {
                    stringBuilder.Append(html.ActionLink("<<", action, routeValueDic));
                }
                else
                {
                    stringBuilder.Append("<span class=\"current\"><<</span>");
                }
            }

            int lower = pageIndex - 3;
            if (lower <= 0)
                lower = 1;

            int higher = lower + 6;

            if (higher >= index)
                higher = index;


            for (int i = lower; i <= higher; i++)
            {
                if (!i.Equals(pageIndex))
                {
                    if(i.Equals(1))
                    {
                        stringBuilder.Append(html.ActionLink(string.Concat(" ", i.ToString(), " "), action, routeValueDic));
                    }
                    else
                    {
                        routeValueDic.Add("page", i.ToString());
                        stringBuilder.Append(html.ActionLink(string.Concat(" ", i.ToString(), " "), action, routeValueDic));
                        routeValueDic.Remove("page");
                    }
                }
                else
                {
                    stringBuilder.Append(string.Concat("<span class=\"current\">", i.ToString(), "</span>"));
                }

            }

            if (totalRecords > 0)
            {
                if (pageIndex.Equals(index))
                {
                    stringBuilder.Append(string.Concat("<span class=\"current\">&gt;&gt;</span>"));
                }
                else
                {
                    routeValueDic.Add("page", index.ToString());
                    stringBuilder.Append(html.ActionLink(">>", action, routeValueDic));
                    routeValueDic.Remove("page");
                }
            }

            if (data.TotalRecords.Equals(0)) data.StatisticHtml = false;

            if (data.StatisticHtml)
            {
                stringBuilder.Append(string.Concat("<span>Pages: ", pageIndex, " / ", index, "</span>"));
            }

            return stringBuilder.ToString();
        }

         private   static   int  CalculateTotalPages( int  totalRecords,  int  pageSize)
         {
            int num = totalRecords / pageSize;//计算
            if ((totalRecords % pageSize) > 0)
            {
                num++;
            }
            return num;
        }

         public   static   int  GetPageIndex // 获取URL page
         {
            get
            {
                int page = RequestExtensions.GetIntQueryString("page");//public static int GetIntQueryString(string Key){int num = 0; try{ num = Convert.ToInt32(HttpContext.Current.Request.QueryString[Key]);}catch{}return num;}
                int intValue = 1;

                if (page.Equals(0) || page < 0)
                {
                    return intValue;
                }
                else
                {
                    return page;
                }

            }
        }

3、调用

html:<%=Html.MvcPager(ViewData["UserRecordTotalRecords"] as MvcPagerModel,
                                    new { StartDate = RequestExtensions.GetStringQueryString("StartDate"),
                                          EndDate = RequestExtensions.GetStringQueryString("EndDate")})%>

cs:

int pageSize = 19;
int pageIndex = MvcPagerExtensions.GetPageIndex;
int totalRecords = 0;

List<UserRecordContract> result = ×××(×××,ref totalRecords);

MvcPagerModel mvcPagerModel = new MvcPagerModel { PageIndex = pageIndex, PageSize = pageSize, TotalRecords = totalRecords };

ViewData["UserRecordTotalRecords"] = mvcPagerModel;

结: 很简单的一个MVC分页，原理就是获取一个列表的总记录数，然后根据页码进行分页。

作者：拽着胃的牛
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