一个功能齐全的DataGrid分页例子(两种方法)

 

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" 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 align="center">
      <asp:label id="lblPageCount" runat="server" Font-Size="9pt" Font-Bold="True"></asp:label>&nbsp;
      <asp:label id="lblCurrentIndex" runat="server" Font-Size="9pt" Font-Bold="True"></asp:label>
      <asp:linkbutton id="btnFirst" runat="server" Font-size="9pt" ForeColor="navy" CommandArgument="0"/>&nbsp;
      <asp:linkbutton id="btnPrev" runat="server" Font-size="9pt" ForeColor="navy" CommandArgument="prev"/>&nbsp;
      <asp:linkbutton id="btnNext" runat="server" Font-size="9pt" ForeColor="navy" CommandArgument="next"/>&nbsp;
      <asp:linkbutton id="btnLast" runat="server" Font-size="9pt" ForeColor="navy" CommandArgument="last"/>
    </p>
  </form>
</body>
</HTML>

DataGridPaging2.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.DataGridPaging2
{
/// <summary>
/// DataGridPaging 的摘要说明。
/// </summary>
public class DataGridPaging2 : 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="
    + HttpContext.Current.Server.MapPath("../../aspxWeb.mdb.ascx");
  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();
 }
 
#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.MyDataGrid.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.OnPageIndexChanged);
  this.btnFirst.Click += new System.EventHandler(this.PagerButtonClick);
  this.btnPrev.Click += new System.EventHandler(this.PagerButtonClick);
  this.btnNext.Click += new System.EventHandler(this.PagerButtonClick);
  this.btnLast.Click += new System.EventHandler(this.PagerButtonClick);
  this.Load += new System.EventHandler(this.Page_Load);

 }
#endregion

 private void OnPageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
 {
 int startIndex ;
  startIndex = MyDataGrid.CurrentPageIndex * MyDataGrid.PageSize;
  MyDataGrid.CurrentPageIndex = e.NewPageIndex;
  BindGrid();
  ShowStats();
 }
}
}

原文地址:https://www.cnblogs.com/studio313/p/269746.html