近期对MVc自定义分页作了一下小研究下面把他记下来
下述代1，2，3里面的代码可以直接拷贝，4以后的根据情况自己选定
1.在后台任写如下的扩展方法（任一类库都可以，但是用时得引用命名空间）
// 添加using System.Web; using System.Web.Mvc; 引用，找不到可以从MVC层拷贝
namespace System.Web.Mvc.Html // 注意一定要把类的命名空间写成System.Web.Mvc.Html
{
public static class PageExtensioncs // 一定要是静态类
{
// 一定要是静态方法
public static HtmlString ShowPageNavigate(this HtmlHelper htmlHelper, int currentPage, int pageSize, int totalCount)
{
var redirectTo = htmlHelper.ViewContext.RequestContext.HttpContext.Request.Url.AbsolutePath;
pageSize = pageSize == 0 ? 3 : pageSize; // 显示条数设置
var totalPages = Math.Max((totalCount + pageSize - 1) / pageSize, 1); //总页数
var output = new StringBuilder();
if (totalPages > 1)
{
output.AppendFormat("<a class=‘pageLink‘ href=‘{0}?pageIndex=1&pageSize={1}‘>首页</a> ", redirectTo, pageSize);
if (currentPage > 1)
{//处理上一页的连接
output.AppendFormat("<a class=‘pageLink‘ href=‘{0}?pageIndex={1}&pageSize={2}‘>上一页</a> ", redirectTo, currentPage - 1, pageSize);
}
output.Append(" ");
int currint = 5;
for (int i = 0; i <= 10; i++)
{//一共最多显示10个页码，前面5个，后面5个
if ((currentPage + i - currint) >= 1 && (currentPage + i - currint) <= totalPages)
{
if (currint == i)
{//当前页处理
output.AppendFormat("<a class=‘cpb‘ href=‘{0}?pageIndex={1}&pageSize={2}‘>{3}</a> ", redirectTo, currentPage, pageSize, currentPage);
}
else
{//一般页处理
output.AppendFormat("<a class=‘pageLink‘ href=‘{0}?pageIndex={1}&pageSize={2}‘>{3}</a> ", redirectTo, currentPage + i - currint, pageSize, currentPage + i - currint);
}
}
output.Append(" ");
}
if (currentPage < totalPages)
{//处理下一页的链接
output.AppendFormat("<a class=‘pageLink‘ href=‘{0}?pageIndex={1}&pageSize={2}‘>下一页</a> ", redirectTo, currentPage + 1, pageSize);
}
output.Append(" ");
if (currentPage != totalPages)
{
output.AppendFormat("<a class=‘pageLink‘ href=‘{0}?pageIndex={1}&pageSize={2}‘>末页</a> ", redirectTo, totalPages, pageSize);
}
output.Append(" ");
}
output.AppendFormat("<label>第{0}页 / 共{1}页</label>", currentPage, totalPages);//这个统计加不加都行
return new HtmlString(output.ToString());
}
}
}
2.添加分页信息类
namespace SysCommon
{
public class PagerInfo
{
/// <summary>
/// 总记录数
/// </summary>
public int RecordCount { get; set; }
/// <summary>
/// 当前页码
/// </summary>
public int CurrentPageIndex { get; set; }
/// <summary>
/// 显示条数
/// </summary>
public int PageSize { get; set; }
}
}
3.添加泛型对像叠加类（这里的这种用法很值得学习）
namespace SysCommon
{
public class PagerQuery<TPager, TEntityList>
{
public PagerQuery(TPager pager, TEntityList entityList)
{
this.Pager = pager;
this.EntityList = entityList;
}
public TPager Pager { get; set; }
public TEntityList EntityList { get; set; }
}
}
上述代1，2，3里面的代码可以直接拷贝
4.在Controller中代码如下 （注意）
public ActionResult Index(int? pageSize,int? pageIndex)
{
List<UserInfo> list = new List<UserInfo>();
UserInfo u1 = new UserInfo { Uid=1,UserName="zs",TrueName="张三"};
list.Add(u1);
UserInfo u2 = new UserInfo { Uid = 2, UserName = "zs2", TrueName = "张三2" };
list.Add(u2);
UserInfo u3 = new UserInfo { Uid = 3, UserName = "zs3", TrueName = "张三3" };
list.Add(u3);
UserInfo u4 = new UserInfo { Uid = 4, UserName = "zs4", TrueName = "张三4" };
list.Add(u4);
UserInfo u5 = new UserInfo { Uid = 5, UserName = "zs5", TrueName = "张三5" };
list.Add(u5);
UserInfo u6 = new UserInfo { Uid = 6, UserName = "zs6", TrueName = "张三6" };
list.Add(u6);
UserInfo u7 = new UserInfo { Uid = 7, UserName = "zs7", TrueName = "张三7" };
list.Add(u7);
UserInfo u8 = new UserInfo { Uid = 8, UserName = "zs8", TrueName = "张三8" };
list.Add(u8);
UserInfo u9 = new UserInfo { Uid = 9, UserName = "zs9", TrueName = "张三9" };
list.Add(u9);
UserInfo u10 = new UserInfo { Uid = 10, UserName = "zs10", TrueName = "张三10" };
list.Add(u10);
UserInfo u11 = new UserInfo { Uid = 11, UserName = "zs11", TrueName = "张三11" };
list.Add(u11);
UserInfo u12 = new UserInfo { Uid = 12, UserName = "zs12", TrueName = "张三12" };
list.Add(u12);
UserInfo u13 = new UserInfo { Uid = 13, UserName = "zs13", TrueName = "张三13" };
list.Add(u13);
UserInfo u14 = new UserInfo { Uid = 14, UserName = "zs14", TrueName = "张三14" };
list.Add(u14);
UserInfo u15 = new UserInfo { Uid = 15, UserName = "zs15", TrueName = "张三15" };
list.Add(u15);
UserInfo u16 = new UserInfo { Uid = 16, UserName = "zs16", TrueName = "张三16" };
list.Add(u16);
UserInfo u17 = new UserInfo { Uid = 17, UserName = "zs17", TrueName = "张三17" };
list.Add(u17);
UserInfo u18 = new UserInfo { Uid = 18, UserName = "zs18", TrueName = "张三18" };
list.Add(u18);
UserInfo u19 = new UserInfo { Uid = 19, UserName = "zs19", TrueName = "张三19" };
list.Add(u19);
UserInfo u20 = new UserInfo { Uid = 20, UserName = "zs20", TrueName = "张三20" };
list.Add(u20);
UserInfo u21 = new UserInfo { Uid = 21, UserName = "zs21", TrueName = "张三21" };
list.Add(u21);
UserInfo u22 = new UserInfo { Uid = 22, UserName = "zs22", TrueName = "张三22" };
list.Add(u22);
UserInfo u23 = new UserInfo { Uid = 23, UserName = "zs23", TrueName = "张三23" };
list.Add(u23);
UserInfo u24 = new UserInfo { Uid = 24, UserName = "zs24", TrueName = "张三24" };
list.Add(u24);
UserInfo u25 = new UserInfo { Uid = 25, UserName = "zs25", TrueName = "张三25" };
list.Add(u25);
UserInfo u26 = new UserInfo { Uid = 26, UserName = "zs26", TrueName = "张三26" };
list.Add(u26);
PagerInfo p = new PagerInfo();
int pageIndex1 = pageIndex ?? 1; // 重置或获取当前页默认值
int pageSize1 = pageSize ?? 2; // 重置或获取显示条数
List<UserInfo> list2 = list.Skip((pageIndex1 - 1) * pageSize1).Take(pageSize1).ToList(); // 取页面显示的数据
p.PageSize = pageSize1; // 设置页码
p.RecordCount = list.Count; // 设置总记录数
p.CurrentPageIndex = pageIndex1; // 设置当前页码 // 实例化合并泛型，获取数据
PagerQuery<PagerInfo, List<UserInfo>> pgaequery = new PagerQuery<PagerInfo, List<UserInfo>>(p, list2);
return View(pgaequery); // 返回数据
}
5.View 视图中的显示代码 重点@Html.ShowPageNavigate(Model.Pager.CurrentPageIndex, Model.Pager.PageSize, Model.Pager.RecordCount)
@using SysModels
@using SysCommon
@model PagerQuery<PagerInfo,List<UserInfo>>
@{
ViewBag.Title = "Index";
Layout = "~/Views/Shared/_Layout.cshtml";
}
@section Head{
}
<div style=" width:100%;">
<table style="margin:0 auto;">
<thead>
<tr>
<th>用户ID</th>
<th>用户名</th>
<th>真实姓名</th>
<th>Email</th>
<th>English</th>
<th>Tell</th>
</tr>
</thead>
<tbody>
@foreach (UserInfo u in Model.EntityList)
{
<tr>
<td>@u.Uid</td>
<td>@u.UserName</td>
<td>@u.TrueName</td>
<td>@u.Email</td>
<td>@u.EnglishName</td>
<td>@u.Tell</td>
</tr>
}
</tbody>
</table>
<div class="paginator" style=" width:600px;margin:0 auto;">
@Html.ShowPageNavigate(Model.Pager.CurrentPageIndex, Model.Pager.PageSize, Model.Pager.RecordCount)
</div>
</div>
6. 可以加上样式 代码如下
<style type="text/css">
.paginator
{
font: 14px Arial, Helvetica, sans-serif;
padding: 10px 20px 10px 0;
margin: 0px auto;
}
.paginator a
{
border: solid 1px #ccc;
color: #0063dc;
cursor: pointer;
text-decoration: none;
}
.paginator a:visited
{
padding: 1px 6px;
border: solid 1px #ddd;
background: #fff;
text-decoration: none;
}
.paginator .cpb
{
border: 1px solid #F50;
font-weight: 700;
color: #F50;
background-color: #ffeee5;
}
.paginator a:hover
{
border: solid 1px #F50;
color: #f60;
text-decoration: none;
}
.paginator a, .paginator a:visited, .paginator .cpb, .paginator a:hover
{
float: left;
height: 20px;
line-height: 20px;
min-width: 14px;
_width: 14px;
margin-right: 5px;
text-align: center;
white-space: nowrap;
font-size: 14px;
font-family: Arial,SimSun;
padding: 0 3px;
}
.paginator label
{
display:block;
float:left;
margin-top:4px;
}
</style>
7.显示效果如下
本文原于 *滴血* 的博客，只是根据本人自己的实例做了更详细的阐述.
*滴血* 文章参考：http://www.cnblogs.com/ChengPuYuan/p/3715412.html
时间： 2024-12-21 10:37:15