ASP.NET MVC分页实现

ASP.NET MVC中不能使用分页控件，所以我就自己写了一个分页局部视图，配合PageInfo类，即可实现在任何页面任意位置呈现分页，由于采用的是基于POST分页方式，所以唯一的限制就是必须放在FORM中,当然以后我会考虑实现基于URL分页的！

一、PageInfo类

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

 namespace ROIS.Models
 {
     /// <summary>
     /// 分页信息
     /// </summary>
     public class PageInfo
     {
         private int _RecordCount = ;
         private int _PageSize = ;
         private int _CurrentPageNo=;

         /// <summary>
         /// 获取或设置记录总数
         /// </summary>
         public int RecordCount
         {
             get
             {
                 return _RecordCount;
             }
             set
             {
                 if (value > )
                 {
                     _RecordCount = value;
                 }
             }
         }

         /// <summary>
         /// 获取或设置每页记录数
         /// </summary>
         public int PageSize
         {
             get {
                 return _PageSize;
             }
             set {
                 if (value > )
                 {
                     _PageSize = value;
                 }
             }
         }

         /// <summary>
         /// 获取或设置当前索引页码(从1开始计算)
         /// </summary>
         public int CurrentPageNo
         {
             get {
                 return _CurrentPageNo;
             }

             set {
                 if (value > )
                 {
                     if (value > this.PageCount)
                     {
                         _CurrentPageNo = this.PageCount;
                     }
                     else
                     {
                         _CurrentPageNo = value;
                     }
                 }
             }
         }

         /// <summary>
         /// 获取总页数
         /// </summary>
         public int PageCount
         {
             get
             {
                 if (this.RecordCount <= )
                 {
                     return ;
                 }

                 return this.RecordCount / this.PageSize + (this.RecordCount % this.PageSize >  ?  : );
             }
         }

         public PageInfo()
         { }

         public PageInfo(int recordCount, int currentPageNo, int pageSize = )
         {
             this.RecordCount = recordCount;
             this.PageSize = pageSize;
             this.CurrentPageNo = currentPageNo;
         }

         /// <summary>
         /// 是否为首页
         /// </summary>
         /// <returns></returns>
         public bool IsFirstPage()
         {
             return (this.CurrentPageNo <= );
         }

         /// <summary>
         /// 是否为末页
         /// </summary>
         /// <returns></returns>
         public bool IsLastPage()
         {
             return (this.CurrentPageNo>=this.PageCount);
         }

     }
 }
  

二、_Pager局部视图(建议放在Shared目录下)

@using ROIS.Models;

@model PageInfo

@if (Model!=null && Model.RecordCount > )
{
<div class="pager">
    第@(Model.CurrentPageNo) 页&nbsp;/&nbsp;共@(@Model.PageCount)页,
@if (Model.IsFirstPage())
{
    <span>|&lt;首&nbsp;&nbsp;页</span>
    <span>&lt;上一页</span>
}
else
{
    <a href="javascript:turnPage(1);">|&lt;首&nbsp;&nbsp;页</a>
    <a href="javascript:turnPage(@(Model.CurrentPageNo-1));">&lt;上一页</a>
}
@if (Model.IsLastPage())
{
    <span>下一页&gt;</span>
    <span>末&nbsp;&nbsp;页&gt;|</span>
}
else
{
     <a href="javascript:turnPage(@(Model.CurrentPageNo+1));">下一页&gt;</a>
     <a href="javascript:turnPage(@Model.PageCount);">末&nbsp;&nbsp;页&gt;|</a>
}
转到：
<select id="pages" onchange="javascript:turnPage(this.value);">
    @for (int i = ; i <= Model.PageCount; i++)
    {
        if (Model.CurrentPageNo == i)
        {
        <option value="@i" selected="selected">第@(i)页</option>
        }
        else
        {
        <option value="@i">第@(i)页</option>
        }
    }
</select>
<input type="hidden" id="_pageno" name="_pageno" />
</div>
<script type="text/javascript">
<!--
    function turnPage(pageNo) {
        var oPageNo = document.getElementById("_pageno");
        oPageNo.value = pageNo;
        oPageNo.form.submit();
    }

    function getForm(obj) { //这个没有用到，但可以取代上面的oPageNo.form
        if (obj.parentNode.nodeName.toLowerCase() == "form") {
            return obj.parentNode;
        } else {
            getForm(obj.parentNode);
        }
    }
//-->
</script>

}

三、使用方法：

后台Controller的Action中加入：

string pageNo = Request.Form["_pageno"];
            int iPageNo = 1;
            int.TryParse(pageNo, out iPageNo);
            PageInfo pageInfo=new PageInfo(5000,iPageNo, 20);

ViewBag.PageInfo = pageInfo;

前台VIEW页面代码如下：(注： ROIS是我专案名称，依实际情况更换)

@using (Html.BeginForm())
{
      这里面是数据列表HTML代码

@Html.Partial("_Pager", ViewBag.PageInfo as ROIS.Models.PageInfo)

}

原文出自我的个人网站：http://www.zuowenjun.cn/post/2014/08/26/24.html