MVC HtmlHelper擴(kuò)展類(PagingHelper)實(shí)現(xiàn)分頁(yè)功能
更新時(shí)間：2017年05月06日 14:59:14 作者：長(zhǎng)毛象
這篇文章主要為大家詳細(xì)介紹了MVC HtmlHelper擴(kuò)展，實(shí)現(xiàn)分頁(yè)功能，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下
MVC HtmlHelper擴(kuò)展類PagingHelper實(shí)現(xiàn)分頁(yè)功能，供大家參考，具體內(nèi)容如下
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
namespace HtmlHelperMvc.Models
{
/// <summary>
/// 分頁(yè)類如果一個(gè)頁(yè)面顯示兩個(gè)列表只需要復(fù)制該類到項(xiàng)目中重命名一個(gè)就可以
/// </summary>
public static class PagingHelper
{
#region 屬性Property
/// <summary>
/// 當(dāng)前頁(yè)碼
/// </summary>
private static int? _currentPage = null;
/// <summary>
/// 當(dāng)前頁(yè)碼
/// </summary>
public static int CurrentPage
{
get
{
return _currentPage ?? 1;
}
set
{
_currentPage = value;
}
}
/// <summary>
/// 每頁(yè)記錄條數(shù)
/// </summary>
private static int? _pageSize = null;
/// <summary>
/// 每頁(yè)記錄條數(shù)
/// </summary>
public static int PageSize
{
get
{
return _pageSize ?? 15;
}
set
{
_pageSize = value;
}
}
/// <summary>
/// 是否顯示上一頁(yè)
/// </summary>
public static bool HasPreviousPage
{
get
{
return (CurrentPage > 1);
}
}
/// <summary>
/// 是否顯示下一頁(yè)
/// </summary>
public static bool HasNextPage
{
get
{
return (CurrentPage < TotalPages);
}
}
/// <summary>
/// 當(dāng)前頁(yè):
/// </summary>
public static string CurrentPageDisplayName { get; set; }
/// <summary>
/// 每頁(yè)顯示:
/// </summary>
public static string PageSizeDisplayName { get; set; }
public static string FirstDisplayName { get; set; }
public static string PreDisplayName { get; set; }
public static string NextDisplayName { get; set; }
public static string LastDisplayName { get; set; }
public static string TotalCountDisplayName { get; set; }
public static string TotalPagesDisplayName { get; set; }
/// <summary>
/// 總條數(shù)
/// </summary>
public static int TotalCount
{
get;
set;
}
public static int TotalPages
{
get
{
return (int)Math.Ceiling(TotalCount / (double)PageSize);
//return (TotalCount % PageSize == 0 ? TotalCount / PageSize : TotalCount / PageSize + 1);
}
}
/// <summary>
/// 設(shè)置分頁(yè)url eg:/Admin/Product/Index
/// </summary>
public static string PagingUrl
{
get;
set;
}
/// <summary>
/// 默認(rèn)page,設(shè)置分頁(yè)參數(shù)名 eg:/Admin/Product/Index?PagingParamName=1
/// </summary>
public static string PagingParamName
{
get;
set;
}
#endregion
#region Paging String
/// <summary>
/// MVC分頁(yè) 如果用jquery分頁(yè)只需要class不需要href,用以下實(shí)現(xiàn):
/// $(".class值").live("click", function () {
/// var page = $(this).attr("pagingParamName值");
/// $("#order").html("").load("/Customer/Order?page="+page);
/// });live自動(dòng)給遍歷增加事件
/// </summary>
/// <param name="html"></param>
/// <param name="htmlAttributes">new {@class="grey",pagingParamName="page",href="/Admin/Product/Index" rel="external nofollow" } pagingParamName默認(rèn)page,匿名類添加控件屬性</param>
/// <returns></returns>
public static MvcHtmlString Paging(this System.Web.Mvc.HtmlHelper html, object htmlAttributes)
{
RouteValueDictionary values = new RouteValueDictionary(htmlAttributes);
#region 屬性賦值
if (values["href"] != null)
{
PagingUrl = values["href"].ToString();
}
if (values["pagingParamName"] != null)
{
PagingParamName = values["pagingParamName"].ToString();
values.Remove("pagingParamName");
}
else
{
PagingParamName = "page";
}
#endregion
#region 分頁(yè)最外層div/span
TagBuilder builder = new TagBuilder("div");//span
//創(chuàng)建Id,注意要先設(shè)置IdAttributeDotReplacement屬性后再執(zhí)行GenerateId方法.
//builder.IdAttributeDotReplacement = "_";
//builder.GenerateId(id);
//builder.AddCssClass("");
//builder.MergeAttributes(values);
builder.InnerHtml = PagingBuilder(values);
#endregion
return MvcHtmlString.Create(builder.ToString(TagRenderMode.Normal));//解決直接顯示html標(biāo)記
}
private static string PagingBuilder(RouteValueDictionary values)
{
#region 條件搜索時(shí)包括其他參數(shù)
StringBuilder urlParameter = new StringBuilder();
NameValueCollection collection = HttpContext.Current.Request.QueryString;
string[] keys = collection.AllKeys;
for (int i = 0; i < keys.Length; i++)
{
if (keys[i].ToLower() != "page")
{
urlParameter.AppendFormat("&{0}={1}", keys[i], collection[keys[i]]);
}
}
#endregion
//CurrentPage = Convert.ToInt32(HttpContext.Current.Request.QueryString["page"] ?? "0");
StringBuilder sb = new StringBuilder();
#region 分頁(yè)統(tǒng)計(jì)
sb.AppendFormat("Total {0} Records Page {1} of {2} ", TotalCount, CurrentPage, TotalPages);
#endregion
#region 首頁(yè) 上一頁(yè)
sb.AppendFormat(TagBuilder(values, 1, " First"));
//sb.AppendFormat("<a href={0}?page=1{1}>First</a> ",url,urlParameter);
if (HasPreviousPage)
{
sb.AppendFormat(TagBuilder(values, CurrentPage - 1, " Prev "));
//sb.AppendFormat("<a href={0}?page={1}{2}>Prev</a> ", url, CurrentPage - 1, urlParameter);
}
#endregion
#region 分頁(yè)邏輯
if (TotalPages > 10)
{
if ((CurrentPage + 5) < TotalPages)
{
if (CurrentPage > 5)
{
for (int i = CurrentPage - 5; i <= CurrentPage + 5; i++)
{
sb.Append(TagBuilder(values, i, i.ToString()));
}
}
else
{
for (int i = 1; i <= 10; i++)
{
sb.Append(TagBuilder(values, i, i.ToString()));
}
}
sb.Append("... ");
}
else
{
for (int i = CurrentPage - 10; i <= TotalPages; i++)
{
sb.Append(TagBuilder(values, i, i.ToString()));
}
}
}
else
{
for (int i = 1; i <= TotalPages; i++)
{
sb.Append(" " + TagBuilder(values, i, i.ToString()) + " ");
}
}
#endregion
#region 下一頁(yè) 末頁(yè)
if (HasNextPage)
{
sb.AppendFormat(TagBuilder(values, CurrentPage + 1, "Next"));
//sb.AppendFormat("<a href={0}?page={1}{2}>Next</a> ", url, CurrentPage + 1, urlParameter);
}
sb.AppendFormat(TagBuilder(values, TotalPages, "Last"));
//sb.AppendFormat("<a href={0}?page={1}{2}>Last</a>",url,TotalPages,urlParameter);
#endregion
return sb.ToString();
}
private static string TagBuilder(RouteValueDictionary values, int i, string innerText)
{
values[PagingParamName] = i;
TagBuilder tag = new TagBuilder("a");
if (PagingUrl != null)
{
values["href"] = PagingUrl + "?" + PagingParamName + "= " + i + " ";
}
if (CurrentPage == i && innerText != " First" && innerText != " Last")
{
values["id"] = "on";
}
else
{
tag.Attributes["id"] = "";
}
tag.MergeAttributes(values);
tag.SetInnerText(innerText);
return tag.ToString();
}
#endregion
}
}
后臺(tái)Controller代碼
//
// GET: /Home/
public ActionResult Index(int? page)
{
page = page ?? 1;
PagingHelper.CurrentPage = Convert.ToInt32(page);
PagingHelper.PageSize = 20;
//{獲取數(shù)據(jù)集的中條數(shù)，以及分頁(yè)的數(shù)據(jù)集}
PagingHelper.TotalCount = 2000;
return View();
}
前臺(tái)頁(yè)面代碼
@{
ViewBag.Title = "Index";
}
@using HtmlHelperMvc.Models;
<h2>Index</h2>
<hr />
<style type="text/css">
#on
{
color: #FFF;
background-color: #337AB7;
border-color: #337AB7;
}
.pagination a
{
margin-right: 3px;
padding: 5px 10px;
font-size: 12px;
text-decoration: none;
background-color: #fff;
border: 1px solid #ddd;
cursor: pointer;
display: inline-block;
border-radius: 3px;
}
a
{
color: #337ab7;
text-decoration: none;
}
a
{
background-color: transparent;
}
*
{
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
</style>
<script src="~/Scripts/jquery-1.8.2.js"></script>
<script type="text/javascript">
$(function () {
$(".pagination .active").live("click", function () {
$("#page").val($(this).attr("page"));
$("#form_Submit").submit();
});
});
</script>
<form id="form_Submit" action="/Home/Index" method="post">
<div class="fix">
<div class="page">
<div class="pagination pagination-sm pull-right" id="pageDiv" style="margin: 0px 0;">
<input type="hidden" id="page" name="page" value="@PagingHelper.CurrentPage" />
@Html.Paging(new { @class = "active" })
</div>
</div>
</div>
</form>
最終效果圖：
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。
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