mvc3分页封装
1.先自定义一个类为PagingInfo
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace eBuul.ChinaJoy.BLL.Models
{
public class PagingInfo
{
/// <summary>
/// 总条数
/// </summary>
public int TotalItems { get; set; }
/// <summary>
/// 每页条数
/// </summary>
public int ItemsPerPage { get; set; }
/// <summary>
/// 当前页数
/// </summary>
public int CurrentPage { get; set; }
/// <summary>
/// 总页数
/// </summary>
public int TotalPages
{
get
{
if (ItemsPerPage!=0)
{
return (int)Math.Ceiling((decimal)TotalItems / ItemsPerPage);
}
return 0;
}
}
}
}
2.在Action中写入以下代码：
PagingInfo pagingInfo = new PagingInfo() { CurrentPage = pageIndex, ItemsPerPage = pageSize, TotalItems = total };
ViewBag.PagingInfo = pagingInfo;
3.在view视图中调用
<div class="pages">
@Html.PageLinkes("FineGame", "Index", (eBuul.ChinaJoy.BLL.Models.PagingInfo)ViewBag.PagingInfo, new string[] { "Keyword" })
</div>
4.Html扩展方法实现
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Text;
using eBuul.ChinaJoy.BLL.Models;
namespace System.Web.Mvc.Html
{
public static class PagingHelpers
{
public static MvcHtmlString PageLinkes(this HtmlHelper html, string controller, string ActionName, PagingInfo pagingInfo, string[] paramArray)
{
HttpContext contenxt = HttpContext.Current;
if (pagingInfo.TotalItems==0)
{
return MvcHtmlString.Create("");
}
//设置分页显示的区间值
int IsNextPage = 1;
int currentPage = (pagingInfo.CurrentPage - 1) / 5;
int start = 1, end = 5;
if (currentPage >= 1)
{
start = (currentPage * 5) + 1;
end = (currentPage + 1) * 5;
}
StringBuilder result = new StringBuilder();
string tmp = "";
if (paramArray != null && paramArray.Length > 0)
{
for (int n = 0; n < paramArray.Length; n++)
{
if (contenxt.Request.Params.AllKeys.Contains(paramArray[n]))
tmp += "&" + paramArray[n] + "=" + contenxt.Request.Params[paramArray[n]];
}
}
//生成中间的分页数目
int i = 0;
for (i = start; i <= end; i++)
{
if (i <= pagingInfo.TotalPages)
{
TagBuilder litag = new TagBuilder("li");
TagBuilder tag = new TagBuilder("a");
if (tmp != "")
tag.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}{3}", controller, ActionName, i, tmp));
else
tag.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}", controller, ActionName, i));
tag.InnerHtml = i.ToString();
if (i == pagingInfo.CurrentPage)
litag.AddCssClass("li_bg");
litag.InnerHtml = tag.ToString();
result.Append(litag.ToString());
IsNextPage++;
}
else
break;
}
//设置分页显示的下一区间值的起始位置(即页面中的"..."按钮)
if (pagingInfo.TotalPages > 5 && (i - 1) != pagingInfo.TotalPages)
{
TagBuilder litagDot = new TagBuilder("li");
TagBuilder tagDot = new TagBuilder("a");
if (tmp != "")
tagDot.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}{3}", controller, ActionName, end + 1, tmp));
else
tagDot.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}", controller, ActionName, end + 1));
tagDot.InnerHtml = "...";
litagDot.InnerHtml = tagDot.ToString();
result.Append(litagDot.ToString());
}
//设置分页显示的上一区间值的起始位置(即页面中的"..."按钮)
if (currentPage >= 1)
{
TagBuilder litagDot = new TagBuilder("li");
TagBuilder tagDot = new TagBuilder("a");
if (tmp != "")
tagDot.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}{3}", controller, ActionName, start - 1, tmp));
else
tagDot.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}", controller, ActionName, start - 1));
tagDot.InnerHtml = "...";
litagDot.InnerHtml = tagDot.ToString();
result.Insert(0, litagDot.ToString());
}
//上一页
if (pagingInfo.TotalPages > 1)
{
TagBuilder litagPre = new TagBuilder("li");
TagBuilder tagPre = new TagBuilder("a");
//TagBuilder tagImgPre = new TagBuilder("img");
//tagImgPre.MergeAttribute("src", "/Content/imghome/left02.png");
if (pagingInfo.CurrentPage == 1)
tagPre.MergeAttribute("href", "#");
else
{
if (tmp != "")
tagPre.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}{3}", controller, ActionName, pagingInfo.CurrentPage - 1, tmp));
else
tagPre.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}", controller, ActionName, pagingInfo.CurrentPage - 1));
}
//tagPre.InnerHtml = tagImgPre.ToString();
tagPre.InnerHtml = "上一页";
litagPre.InnerHtml = tagPre.ToString();
result.Insert(0, litagPre);
}
//下一页
if (pagingInfo.TotalPages > 1)
{
TagBuilder litagNext = new TagBuilder("li");
TagBuilder tagNext = new TagBuilder("a");
//TagBuilder tagImgNext = new TagBuilder("img");
//tagImgNext.MergeAttribute("src", "/Content/imghome/right02.png");
if (pagingInfo.CurrentPage == pagingInfo.TotalPages)
tagNext.MergeAttribute("href", "#");
else
{
if (tmp != "")
tagNext.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}{3}", controller, ActionName, pagingInfo.CurrentPage + 1, tmp));
else
tagNext.MergeAttribute("href", string.Format("/{0}/{1}?pageNo={2}", controller, ActionName, pagingInfo.CurrentPage + 1));
}
//tagNext.InnerHtml = tagImgNext.ToString();
tagNext.InnerHtml = "下一页";
litagNext.InnerHtml = tagNext.ToString();
result.Append(litagNext.ToString());
}
//总页数
TagBuilder litagTotal = new TagBuilder("li");
TagBuilder spantag = new TagBuilder("span");
litagTotal.AddCssClass("li_none");
spantag.InnerHtml = pagingInfo.TotalItems.ToString();
string paramUrl = string.Format("/{0}/{1}{2}", controller, ActionName, string.IsNullOrWhiteSpace(tmp)?string.Empty:"?"+tmp.TrimStart('&'));
string pageHtml = string.Format("共<span id=\"pageSum\">{0}</span>页 {1}条记录 到第<input type=\"text\" size=\"2\" id=\"jumpto\" name=\"jumpto\" class=\"inputpage\" title=\"指定页码\" value=\"{3}\">页<input type=\"button\" title=\"指定页码\" value=\"确定\" id=\"btnGO\" class=\"button_li\"><input type=\"hidden\" value=\"{2}\" id=\"hdnParamUrl\"", pagingInfo.TotalPages, spantag.ToString(), paramUrl, pagingInfo.TotalPages == pagingInfo.CurrentPage ? pagingInfo.CurrentPage : pagingInfo.CurrentPage+1);
litagTotal.InnerHtml = pageHtml;
result.Append(litagTotal.ToString());
TagBuilder ultag = new TagBuilder("ul");
ultag.InnerHtml = result.ToString();
return MvcHtmlString.Create(ultag.ToString());
}
}
}
