出处：snooker_li的专栏
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
<%@ControlLanguage="c#"AutoEventWireup="false"Codebehind="AutoPage.ascx.cs"Inherits="album.AutoPage"TargetSchema="<tableborder="0"cellpadding="0"cellspacing="0">
<tr>
<tdvalign="middle"height="30">共<asp:labelid="lb_ItemCount"ForeColor="Red"runat="server"></asp:label>条记录 </td>
<tdvalign="middle"height="30"><asp:hyperlinkid="hpl_First"runat="server">首页</asp:hyperlink> </td>
<tdvalign="middle"height="30"><asp:hyperlinkid="hpl_Prev"runat="server">上页</asp:hyperlink> </td>
<tdvalign="middle"height="30">当前<asp:labelid="lb_CurrentPage"runat="server"></asp:label>页/共<asp:labelid="lb_PageCount"runat="server"></asp:label>页 </td>
<tdvalign="middle"height="30"><asp:hyperlinkid="hpl_Next"runat="server">下页</asp:hyperlink> </td>
<tdvalign="middle"height="30"><asp:hyperlinkid="hpl_Last"runat="server">末页</asp:hyperlink> </td>
<tdvalign="middle"height="30"><asp:textboxid="txb_Page"runat="server"Width="32px"BorderStyle="Solid"BorderWidth="1px"
BorderColor="Silver"></asp:textbox></td>
<tdvalign="middle"height="30"><asp:ImageButtonid="btn_go"runat="server"ImageUrl="album_images/go.gif"></asp:ImageButton></td>
<tdvalign="middle"height="30"><asp:labelid="lb_url"runat="server"Visible="False"></asp:label><asp:Labelid="lb_Params"runat="server"Visible="False"></asp:Label></td>
</tr>
</table>
AutoPage.ascx.cs页面
namespacealbum
{
usingSystem;
usingSystem.Data;
usingSystem.Drawing;
usingSystem.Web;
usingSystem.Web.UI.WebControls;
usingSystem.Web.UI.HtmlControls;
usingSystem.Data.SqlClient;
///<summary>
///UC的摘要说明。
///</summary>
publicclassAutoPage:System.Web.UI.UserControl
{
protectedSystem.Web.UI.WebControls.HyperLinkhpl_First;
protectedSystem.Web.UI.WebControls.HyperLinkhpl_Prev;
protectedSystem.Web.UI.WebControls.HyperLinkhpl_Next;
protectedSystem.Web.UI.WebControls.Labellb_CurrentPage;
protectedSystem.Web.UI.WebControls.Labellb_PageCount;
protectedSystem.Web.UI.WebControls.HyperLinkhpl_Last;
publicintpagesize;
publicstringPageP;
protectedSystem.Web.UI.WebControls.TextBoxtxb_Page;
protectedSystem.Web.UI.WebControls.Labellb_url;
protectedSystem.Web.UI.WebControls.Labellb_ItemCount;
publicstringurl;
protectedSystem.Web.UI.WebControls.Labellb_Params;
protectedSystem.Web.UI.WebControls.ImageButtonbtn_go;
publicstringParams;
privatevoidPage_Load(objectsender,System.EventArgse)
{
}
publicPagedDataSourcedatabind(DataTabledt)
{
lb_url.Text=url;
lb_Params.Text=Params;
//创建分页类
PagedDataSourceobjPage=newPagedDataSource();
//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
intCurPage=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;
}
returnobjPage;
}
#regionWeb窗体设计器生成的代码
overrideprotectedvoidOnInit(EventArgse)
{
//
//CODEGEN:该调用是ASP.NETWeb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>
privatevoidInitializeComponent()
{
this.btn_go.Click+=newSystem.Web.UI.ImageClickEventHandler(this.btn_go_Click);
this.Load+=newSystem.EventHandler(this.Page_Load);
}
#endregion
privatevoidbtn_go_Click(objectsender,System.Web.UI.ImageClickEventArgse)
{
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)
