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asp.net url分页的用户控件
最近做一个相册程序频繁的需要分页，所以就想写一个用户控件出来。
代码如下：
autopage.ascx页面
<%@ control language="c#" autoeventwireup="false" codebehind="autopage.ascx.cs" inherits="album.autopage" targetschema="http://schemas.microsoft.com/intellisense/ie5" %>
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<td valign="middle" height="30">共<asp:label id="lb_itemcount" forecolor="red" runat="server"></asp:label>条记录 </td>
<td valign="middle" height="30"><asp:hyperlink id="hpl_first" runat="server">首页</asp:hyperlink> </td>
<td valign="middle" height="30"><asp:hyperlink id="hpl_prev" runat="server">上页</asp:hyperlink> </td>
<td valign="middle" height="30">当前<asp:label id="lb_currentpage" runat="server"></asp:label>页/共<asp:label id="lb_pagecount" runat="server"></asp:label>页 </td>
<td valign="middle" height="30"><asp:hyperlink id="hpl_next" runat="server">下页</asp:hyperlink> </td>
<td valign="middle" height="30"><asp:hyperlink id="hpl_last" runat="server">末页</asp:hyperlink> </td>
<td valign="middle" height="30"><asp:textbox id="txb_page" runat="server" width="32px" borderstyle="solid" borderwidth="1px"
bordercolor="silver"></asp:textbox></td>
<td valign="middle" height="30"><asp:imagebutton id="btn_go" runat="server" imageurl="album_images/go.gif"></asp:imagebutton></td>
<td valign="middle" height="30"><asp:label id="lb_url" runat="server" visible="false"></asp:label><asp:label id="lb_params" runat="server" visible="false"></asp:label></td>
</tr>
</table>
autopage.ascx.cs页面
namespace album
{
using system;
using system.data;
using system.drawing;
using system.web;
using system.web.ui.webcontrols;
using system.web.ui.htmlcontrols;
using system.data.sqlclient;
/// <summary>
/// uc 的摘要说明。
/// </summary>
public class autopage : system.web.ui.usercontrol
{
protected system.web.ui.webcontrols.hyperlink hpl_first;
protected system.web.ui.webcontrols.hyperlink hpl_prev;
protected system.web.ui.webcontrols.hyperlink hpl_next;
protected system.web.ui.webcontrols.label lb_currentpage;
protected system.web.ui.webcontrols.label lb_pagecount;
protected system.web.ui.webcontrols.hyperlink hpl_last;
public int pagesize;
public string pagep;
protected system.web.ui.webcontrols.textbox txb_page;
protected system.web.ui.webcontrols.label lb_url;
protected system.web.ui.webcontrols.label lb_itemcount;
public string url;
protected system.web.ui.webcontrols.label lb_params;
protected system.web.ui.webcontrols.imagebutton btn_go;
public string params;
private void page_load(object sender, system.eventargs e)
{
}
public pageddatasource databind(datatable dt)
{
lb_url.text = url;
lb_params.text = params;
//创建分页类
pageddatasource objpage = new pageddatasource();
//设置数据源
objpage.datasource = dt.defaultview;
//允许分页
objpage.allowpaging = true;
//设置每页显示的项数
objpage.pagesize = pagesize;
//设置当前页的索引
int curpage=1;
try
{
curpage = convert.toint32(pagep);
if (curpage<1 curpage>objpage.pagecount)
{
response.redirect(url+"?page=1"+params);
}
}
catch
{
response.redirect(url+"?page=1"+params);
}
objpage.currentpageindex = curpage-1;
//显示状态信息
lb_itemcount.text = dt.rows.count.tostring();
lb_currentpage.text = curpage.tostring();
lb_pagecount.text =objpage.pagecount.tostring();
//如果当前页面不是首页
if (!objpage.isfirstpage)
{
hpl_prev.navigateurl=url + "?page=" + convert.tostring(curpage-1)+params;
hpl_first.navigateurl=url + "?page=1"+params;
}
//如果当前页面不是最后一页
if (!objpage.islastpage)
{
hpl_next.navigateurl=url+ "?page=" + convert.tostring(curpage+1)+params;
hpl_last.navigateurl=url + "?page=" +objpage.pagecount.tostring()+params;
}
return objpage;
}
#region web 窗体设计器生成的代码
override protected void oninit(eventargs e)
{
//
// codegen: 该调用是 asp.net web 窗体设计器所必需的。
//
initializecomponent();
base.oninit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器
/// 修改此方法的内容。
/// </summary>
private void initializecomponent()
{
this.btn_go.click += new system.web.ui.imageclickeventhandler(this.btn_go_click);
this.load += new system.eventhandler(this.page_load);
}
#endregion
private void btn_go_click(object sender, system.web.ui.imageclickeventargs e)
{
response.redirect(lb_url.text+"?page="+txb_page.text+lb_params.text);
}
}
}
调用的时候需要设置几个参数pagesize(每页显示数据个数),pagep(传递的分页参数),parmp(其他的request.qureystring参数),url(页面地址)
绑定的时候只需要把控件的datasource=autopage1.databind(datatable变量)
