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一个功能齐全的DataGrid分页例子(两种方法)

王朝other·作者佚名  2006-11-24
窄屏简体版  字體: |||超大  

方法一:

DataGridPaging.aspx

<%@ Page language="c#" EnableViewState = "true" Codebehind="DataGridPaging.aspx.cs"

AutoEventWireup="false" Inherits="eMeng.Exam.DataGridPaging.DataGridPaging" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>

<HEAD>

<meta content="Visual Basic 7.0" name="CODE_LANGUAGE">

<meta content="JavaScript" name="vs_defaultClientScript">

<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">

</HEAD>

<body MS_POSITIONING="GridLayout">

<form id="Form1" runat="server">

<asp:datagrid id="MyDataGrid" runat="server" AutoGenerateColumns="False"

HorizontalAlign="Center" AlternatingItemStyle-BackColor="#eeeeee"

HeaderStyle-BackColor="#aaaadd" Font-Size="8pt" Font-Name="Verdana"

CellSpacing="0" CellPadding="3" GridLines="Both" BorderWidth="1"

BorderColor="black" OnPageIndexChanged="MyDataGrid_Page" PagerStyle-HorizontalAlign="Right"

PagerStyle-Mode="NumericPages" PageSize="5" AllowPaging="True">

<AlternatingItemStyle BackColor="#EEEEEE"></AlternatingItemStyle>

<HeaderStyle BackColor="#AAAADD" Font-Bold="True" HorizontalAlign="Center"></HeaderStyle>

<PagerStyle HorizontalAlign="Right" Mode="NumericPages"></PagerStyle>

<Columns>

<asp:BoundColumn HeaderText="标题" DataField="Title" HeaderStyle-Width="480px">

</asp:BoundColumn>

<asp:BoundColumn HeaderText="发表日期" DataField="CreateDate" DataFormatString="{0:yyyy-MM-dd hh:mm:ss}">

</asp:BoundColumn>

</Columns>

</asp:datagrid>

<p style="FONT-SIZE:9pt" align="center">

<asp:label id="lblPageCount" runat="server"></asp:label>&nbsp;

<asp:label id="lblCurrentIndex" runat="server"></asp:label>

<asp:linkbutton id="btnFirst" onclick="PagerButtonClick" runat="server" Font-Name="verdana"

Font-size="8pt" ForeColor="navy" CommandArgument="0"></asp:linkbutton>&nbsp;

<asp:linkbutton id="btnPrev" onclick="PagerButtonClick" runat="server" Font-Name="verdana"

Font-size="8pt" ForeColor="navy" CommandArgument="prev"></asp:linkbutton>&nbsp;

<asp:linkbutton id="btnNext" onclick="PagerButtonClick" runat="server" Font-Name="verdana"

Font-size="8pt" ForeColor="navy" CommandArgument="next"></asp:linkbutton>&nbsp;

<asp:linkbutton id="btnLast" onclick="PagerButtonClick" runat="server" Font-Name="verdana"

Font-size="8pt" ForeColor="navy" CommandArgument="last"></asp:linkbutton>

</p>

</form>

</body>

</HTML>

DataGridPaging.aspx.cs

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Data.OleDb;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

namespace eMeng.Exam.DataGridPaging

{

/// <summary>

/// DataGridPaging 的摘要说明。

/// </summary>

public class DataGridPaging : System.Web.UI.Page

{

protected System.Web.UI.WebControls.DataGrid MyDataGrid;

protected System.Web.UI.WebControls.Label lblPageCount;

protected System.Web.UI.WebControls.Label lblCurrentIndex;

protected System.Web.UI.WebControls.LinkButton btnFirst;

protected System.Web.UI.WebControls.LinkButton btnPrev;

protected System.Web.UI.WebControls.LinkButton btnNext;

protected System.Web.UI.WebControls.LinkButton btnLast;

private OleDbConnection cn = new OleDbConnection();

private void Page_Load(object sender, System.EventArgs e)

{

// 在此处放置用户代码以初始化页面

btnFirst.Text = "最首页";

btnPrev.Text = "前一页";

btnNext.Text = "下一页";

btnLast.Text = "最后页";

OpenDatabase();

BindGrid();

}

private void OpenDatabase()

{

cn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("xxxx.mdb");

cn.Open();

}

private void ShowStats()

{

lblCurrentIndex.Text = "第 " + (MyDataGrid.CurrentPageIndex + 1).ToString() + " 页";

lblPageCount.Text = "总共 " + MyDataGrid.PageCount.ToString() + " 页";

}

public void PagerButtonClick(object sender, EventArgs e)

{

string arg = ((LinkButton)sender).CommandArgument.ToString();

switch(arg)

{

case "next":

if (MyDataGrid.CurrentPageIndex < (MyDataGrid.PageCount - 1))

{

MyDataGrid.CurrentPageIndex += 1;

}

break;

case "prev":

if (MyDataGrid.CurrentPageIndex > 0)

{

MyDataGrid.CurrentPageIndex -= 1;

}

break;

case "last":

MyDataGrid.CurrentPageIndex = (MyDataGrid.PageCount - 1);

break;

default:

MyDataGrid.CurrentPageIndex = System.Convert.ToInt32(arg);

break;

}

BindGrid();

ShowStats();

}

public void BindGrid()

{

OleDbConnection myConnection = cn;

DataSet ds = new DataSet();

OleDbDataAdapter adapter = new OleDbDataAdapter("Select Title,CreateDate from Document", myConnection);

adapter.Fill(ds, "Document");

MyDataGrid.DataSource = ds.Tables["Document"].DefaultView;

MyDataGrid.DataBind();

ShowStats();

}

public void MyDataGrid_Page(object sender, DataGridPageChangedEventArgs e)

{

int startIndex ;

startIndex = MyDataGrid.CurrentPageIndex * MyDataGrid.PageSize;

MyDataGrid.CurrentPageIndex = e.NewPageIndex;

BindGrid();

ShowStats();

}

#region Web Form Designer generated code

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.Load += new System.EventHandler(this.Page_Load);

}

#endregion

}

}

方法二:

DataGridPaging2.aspx

<%@ Page language="c#" EnableViewState = "true" Codebehind="DataGridPaging2.aspx.cs" AutoEventWireup="false"

Inherits="eMeng.Exam.DataGridPaging2.DataGridPaging2" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>

<HEAD>

<TITLE>功能齐全的分页的例子【2】</TITLE>

<meta content="Visual Basic 7.0" name="CODE_LANGUAGE">

<meta content="JavaScript" name="vs_defaultClientScript">

<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">

</HEAD>

<body MS_POSITIONING="GridLayout">

<form id="Form1" runat="server">

<asp:datagrid id="MyDataGrid" runat="server" AutoGenerateColumns="False" HorizontalAlign="Center"

AlternatingItemStyle-BackColor="#eeeeee" HeaderStyle-BackColor="#aaaadd" Font-Size="8pt"

Font-Name="Verdana" CellSpacing="0" CellPadding="3" GridLines="Both" BorderWidth="1"

BorderColor="black" PagerStyle-HorizontalAlign="Right" Page

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