using System; using System.Collections.Generic; using System.Web; using System.Text; using System.Text.RegularExpressions; namespace cofcms { public class PagingCollection<T> { private int pagezise; public int Pagezise { get { return pagezise; } set { pagezise = value; } } private int pageindex; public int Pageindex { get { return pageindex; } set { pageindex = value; } } private int TotalCount; public int TotalCount1 { get { return TotalCount; } set { TotalCount = value; } } private int TotalPage=0; public int TotalPage1 { get { return TotalPage; } set { TotalPage = value; } } private string url; public string Url { get { return url; } set { url = value; } } private string urlparms; public string Urlparms { get {
首先建议LZ用存储过程吧因为防止SQL注入以及一些7788的东西，其实分页的关键点还是那个SQL语句：select r_1,r_2 from (select row_number() over (order by r_ID) as r_row,r_name from table_1) as table_2 where r_row>= n_1 and r_row<=n_2 这个存储过程的参数就是n_1,n_2。楼主看看行得通不，算法就看你每页显示多少条数据了咯
using System.Collections.Generic;
using System.Web;
using System.Text;
using System.Text.RegularExpressions;
namespace cofcms
{
public class PagingCollection<T>
{
private int pagezise; public int Pagezise
{
get { return pagezise; }
set { pagezise = value; }
}
private int pageindex; public int Pageindex
{
get { return pageindex; }
set { pageindex = value; }
}
private int TotalCount; public int TotalCount1
{
get { return TotalCount; }
set { TotalCount = value; }
}
private int TotalPage=0; public int TotalPage1
{
get { return TotalPage; }
set { TotalPage = value; }
}
private string url; public string Url
{
get { return url; }
set { url = value; }
}
private string urlparms; public string Urlparms
{
get {
return urlparms; }
set { urlparms = value; }
}
/// <summary>
/// 分页数据构造
/// </summary>
/// <param name="source"></param>
/// <param name="pageindex"></param>
/// <param name="pagezise"></param>
/// <param name="totalcount"></param>
/// <param name="url"></param>
public PagingCollection(int pageindex, int pagezise, int totalcount, string url)
{
this.pageindex = pageindex;
this.pagezise = pagezise;
TotalCount = totalcount;
TotalPage = (int)Math.Ceiling(TotalCount / (double)pagezise);
this.url = url; } public PagingCollection(int pageindex, int pagezise, int totalcount, string url,string urlparms)
{
this.pageindex = pageindex;
this.pagezise = pagezise;
TotalCount = totalcount;
TotalPage = (int)Math.Ceiling(TotalCount / (double)pagezise);
this.url = url;
this.urlparms = urlparms; } #region 分页属性 返回分页数据
public string GetPatePar
{
get
{
if (TotalCount1 > 0)
{
StringBuilder str = new StringBuilder();
int startpage = (pageindex - 1) / 10 * 10 + 1;
int endpage = (pageindex - 1) / 10 * 10 + 10;
int x = endpage > TotalPage ? TotalPage : endpage;
str.Append("<div style=' color:#1E5494;'>共" + TotalPage1 + "页 / 当前第" + pageindex + "页 "); if (HasPreviousPage)
{
str.Append("<a href=" + url + "?page=1" + GetURLParms + "" + urlparms + ">首页</a> ");
str.Append("<a href=" + url + "?page=" + (pageindex - 1) + GetURLParms + "" + urlparms + ">上一页</a>");
}
else
{
str.Append("<a href=#>首页 </a>");
str.Append("<a href=#>上一页</a>");
}
for (int i = startpage; i <= x; i++)
{
if (i == pageindex)
{
str.Append(string.Format("<a style='margin-left:3px; margin-right:3px;padding:2px 4px 2px 4px;color:red;border:1px solid #cccccc;background-color:#ffffff; '>" + i + "</a>"));
}
else
{
str.Append(string.Format("<a style='margin-left:3px; margin-right:3px;' href=" + url + "?page=" + i + GetURLParms + "" + urlparms + ">" + i + "</a>"));
}
}
if (HasNextPage)
{ str.Append("<a href=" + url + "?page=" + (pageindex + 1) + GetURLParms + "" + urlparms + ">下一页 </a>");
str.Append("<a href=" + url + "?page=" + TotalPage + GetURLParms + "" + urlparms + ">尾页</a>");
}
else
{
str.Append("<a href=#>下一页 </a>");
str.Append("<a href=#>尾页</a>");
}
str.Append("</div>");
return str.ToString();
}
else
{
return "<font color=red>暂无数据！</font>";
} }
}
#endregion
/// <summary>
/// url重写
/// </summary>
private string GetURLParms
{
get
{
string query = HttpContext.Current.Request.Url.Query;
query = Regex.Replace(query, @"\?page=\d*", "", RegexOptions.Compiled);
return query;
}
}
/// <summary>
///判断是否有上一页
/// </summary>
public bool HasPreviousPage
{
get
{
return (pageindex > 1);
}
}
/// <summary>
///判断是否有下一页
/// </summary>
public bool HasNextPage
{
get
{
return (pageindex < TotalPage);
}
}
} /// <summary>
/// 分页数据类
/// </summary>
/// <typeparam name="T"></typeparam>
public class PageBean<T>
{ IList<T> datasource = new List<T>(); public IList<T> Datasource
{
get { return datasource; }
set { datasource = value; }
} int pagesum; public int Pagesum
{
get { return pagesum; }
set { pagesum = value; }
}
public PageBean(IList<T> datasource, int pagesum)
{
this.datasource = datasource;
this.pagesum = pagesum;
}
public PageBean()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
}
}
/// 检索
/// </summary>
/// <param name="sender">客户信息</param>
/// <param name="e">履历信息</param>
protected void btnSelect_Click(object sender, EventArgs e)
{
BindUsers();//客户信息
PageBind();//履历信息分页
}
//分页
protected void PageBind()
{
btnFirst.Visible = true;
btnPre.Visible = true;
btnNext.Visible = true;
btnEnd.Visible = true;
lbl_page.Visible = true;
lbl_pages.Visible = true;
lbl_count.Visible = true;
int curpage = int.Parse(lbl_page.Text.Trim());//当前页
PagedDataSource ps = new PagedDataSource();
viewCRM_HisInfo hisinfo = new viewCRM_HisInfo();
//履历信息
if (!string.IsNullOrEmpty(txtc_num.Text.Trim()))
{
hisinfo.Where.C_num.Value = txtc_num.Text.Trim();
}
if (ddlarea_cd.SelectedValue != "" && ddlarea_cd.SelectedValue != null)
{
hisinfo.Where.Area_cd.Value = ddlarea_cd.SelectedItem.Text;
}
hisinfo.Query.Load();
ps.DataSource = hisinfo.DefaultView; //绑定分页信息
ps.AllowPaging = true; //是否分页
ps.PageSize = 3; //每页数量
ps.CurrentPageIndex = curpage - 1; //当前页
if (curpage == 1) //当当前页是1时，第一页和上一页按钮不可用
{
btnFirst.Enabled = false;
btnPre.Enabled = false;
btnNext.Enabled = true;
btnEnd.Enabled = true;
}
else
{
btnFirst.Enabled = true;
btnPre.Enabled = true;
}
if (curpage == ps.PageCount)//当当前页是最后一页时，下一页和最后一页按钮不可用
{
btnNext.Enabled = false;
btnEnd.Enabled = false;
btnFirst.Enabled = true;
btnPre.Enabled = true;
}
else
{
btnNext.Enabled = true;
btnEnd.Enabled = true;
}
lbl_pages.Text = Convert.ToString(ps.PageCount);//总页数
lbl_count.Text = ps.DataSourceCount.ToString();//总记录数
DataList1.DataSource = ps; //绑定datalist数据
DataList1.DataKeyField = "Id";
DataList1.DataBind();
}
//第一页
protected void btnFirst_Click(object sender, EventArgs e)
{
lbl_page.Text = "1";
PageBind();
}
//上一页
protected void btnPre_Click(object sender, EventArgs e)
{
lbl_page.Text = Convert.ToString(Convert.ToInt32(lbl_page.Text) - 1);
PageBind();
}
//下一页
protected void btnNext_Click(object sender, EventArgs e)
{
lbl_page.Text = Convert.ToString(Convert.ToInt32(lbl_page.Text) + 1);
PageBind();
}
//最后一页
protected void btnEnd_Click(object sender, EventArgs e)
{
lbl_page.Text = lbl_pages.Text;
PageBind(); }
PageCount：当前有多少页
CurrentPage：当前第几页
DispPager：显示多少个页码显示效果请参照图片
http://www.webdiyer.com/controls/aspnetpager
用起来很简单，分页存储过程也帮你生成。
http://www.xunxt.com/forum-viewthread-tid-83-fromuid-1.html
曾经我也以为应该是一大堆的if else，
后来发现还是“PageIndex*PageSize——PageIndex*PageSize+PageSize”更美好