本文实例讲述了asp.net利用后台实现直接生成html分页的方法,是一个比较实用的功能。分享给大家供大家参考之用。具体方法如下:
1.建立存储过程:
ALTER procedure [dbo].[p_news_query]@Page intasbeginselect top 5 new_id,new_title,new_url,new_content_text,create_time,user_name from(select *,ROW_NUMBER() over(order by new_id desc ) as RowNumberfrom(select new_id,new_title,new_url,new_content_text,dbo.f_ConvertDate(a.create_time) create_time, b.user_name from xs_new aleft join xs_users b on b.user_no=a.create_user)TI ) Awhere A.RowNumber>(@Page-1)*5end
目前实验的是每页5条数据,传入当前页码就可以了
2.前台定义一个div ,用于显示
<div id="divPage" runat="server" class="divpage"></div>
3.后台根据传入参数来拼html
目前是模仿博客园的模式,前后显示5条,多余的加...后到最后一条。具体代码如下:
StringBuilder sbr = new StringBuilder();int ITotalCount = pageLogic.QueryNewsCount();int IPage = 1;if (Request["p"] != null){ IPage = Convert.ToInt32(Request["p"]);}int IPageCount = 5;int ITotalPage = ITotalCount / IPageCount;if (ITotalCount % IPageCount > 0){ ITotalPage += 1;}if (IPage != 1){ sbr.Append("<a href="news.aspx?p=" + (IPage - 1).ToString() + "">上一页</a>");}if (ITotalPage <= 10){ for (int i = 1; i <= ITotalPage; i++) { if (i == IPage) { sbr.Append("<a href="news.aspx?p=" + i.ToString() + "" class="pageSelect">" + i.ToString() + "</a>"); } else { sbr.Append("<a href="news.aspx?p=" + i.ToString() + "">" + i.ToString() + "</a>"); } }}else{ if (IPage - 5 > 2 && IPage + 7 < ITotalPage)//前后都有的 { sbr.Append("<a href="news.aspx?p=1">1</a>..."); for (int i = IPage - 5; i <= IPage + 5; i++) { if (i == IPage) { sbr.Append("<a href="news.aspx?p=" + i.ToString() + "" class="pageSelect">" + i.ToString() + "</a>"); } else { sbr.Append("<a href="news.aspx?p=" + i.ToString() + "">" + i.ToString() + "</a>"); } } sbr.Append("...<a href="news.aspx?p=" + ITotalPage.ToString() + "">" + ITotalPage.ToString() + "</a>"); } else if (IPage - 5 <= 2)//前面不够,后面有多余 { for (int i = 1; i <= 10; i++) { if (i == IPage) { sbr.Append("<a href="news.aspx?p=" + i.ToString() + "" class="pageSelect">" + i.ToString() + "</a>"); } else { sbr.Append("<a href="news.aspx?p=" + i.ToString() + "">" + i.ToString() + "</a>"); } } sbr.Append("...<a href="news.aspx?p=" + ITotalPage.ToString() + "">" + ITotalPage.ToString() + "</a>"); } else if (IPage + 7 >= ITotalPage)//前面多余,后面不足 { sbr.Append("<a href="news.aspx?p=1">1</a>..."); for (int i = ITotalPage - 10; i <= ITotalPage; i++) { if (i == IPage) { sbr.Append("<a href="news.aspx?p=" + i.ToString() + "" class="pageSelect">" + i.ToString() + "</a>"); } else { sbr.Append("<a href="news.aspx?p=" + i.ToString() + "">" + i.ToString() + "</a>"); } } }}if (IPage != ITotalPage){ sbr.Append("<a href="news.aspx?p=" + (IPage + 1).ToString() + "">下一页</a>");}divPage.InnerHtml = sbr.ToString();rptNews.DataSource = pageLogic.QueryNews(IPage);rptNews.DataBind();
4.测试效果如下图所示:
希望本文所述对大家的asp.net程序设计有所帮助。