制作分页
我的数据库中有8条记录
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DataListDaTabind();
}
}
protected void DataListDaTabind()
{
AccessDataSource ads = new AccessDataSource();
ads.DataFile = "~/App_Data/shopcart.mdb";
ads.SelectCommand = "select * from Product order by productid ASC";
DataView dv = (DataView)ads.Select(DataSourceSelectArguments.Empty);
PagedDataSource objPage = new PagedDataSource();
objPage.DataSource = dv;
objPage.AllowPaging = true;
objPage.PageSize =6;
int TolPage;
TolPage = objPage.PageCount;
int CurPage;
if (Request.QueryString["Page"] != null)
{
CurPage = Convert.ToInt32(Request.QueryString["Page"]);
}
else
{
CurPage = 1;
}
objPage.CurrentPageIndex = CurPage - 1;
lblCurPage.Text = "目前在第" + CurPage.ToString() + "页，共" + TolPage.ToString() + "页";
lnkFirst.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=1";
lnkLast.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + TolPage.ToString();
if (!objPage.IsFirstPage)
{
lnkPrev.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(CurPage - 1);
}
else
{
lnkPrev.Visible = false;
lnkFirst.Visible = false;
}
if (!objPage.IsLastPage)
{
lnkNext.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(CurPage - 1);
}
else
{
lnkNext.Visible = false;
lnkLast.Visible = false;
}
DataList1.DataSource = objPage;
DataList1.DataBind();//数据库中有8条记录，运行后共两页当单击下一页时总在这提示错误“索引 -6 不是为负数，就是大于行数”。
求救！！！！
[解决办法]
分页在SQL里面去分 不要这么用。。。
- C# code
using System;using System.Collections.Generic;using System.Web;using System.Text;using System.Text.RegularExpressions; 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 // }}
[解决办法]
http://www.cnblogs.com/yyl8781697/archive/2012/03/07/aspnetpager.html
简单实用的分页代码，含demo，
希望对LZ有帮助
[解决办法]
嗯 好东西 收藏了
[解决办法]