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The author:(作者)delv
published in(发表于) 2014/1/16 9:30:32
一个功能齐全的DataGrid分页例子_[Asp.Net教程]

一个功能齐全的DataGrid分页例子_[Asp.Net教程]

面的这个例子提供了DataGrid的分页功能。aspx代码和Cohe Behind代码分别如下，注意更改数据录连接字符串。结果如下：


C#版本 例子


DataGridPaging.aspx

<%@ Page language="c#" EnableViewState = "true" Codebehind="DataGridPaging.aspx.cs"<br/>AutoEventWireup="false" Inherits="eMeng.Exam.DataGridPaging.DataGridPaging" %><br/><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><br/><HTML><br/><HEAD><br/></HEAD><br/><body MS_POSITIONING="GridLayout"><br/><form id="Form1" runat="server"><br/><asp:datagrid id="MyDataGrid" runat="server" AutoGenerateColumns="False"<br/>HorizontalAlign="Center" AlternatingItemStyle-BackColor="#eeeeee"<br/>HeaderStyle-BackColor="#aaaadd" Font-Size="8pt" Font-Name="Verdana"<br/>CellSpacing="0" CellPadding="3" GridLines="Both" BorderWidth="1"<br/>BorderColor="black" OnPageIndexChanged="MyDataGrid_Page" PagerStyle-HorizontalAlign="Right"<br/>PagerStyle-Mode="NumericPages" PageSize="5" AllowPaging="True"><br/><AlternatingItemStyle BackColor="#EEEEEE"></AlternatingItemStyle><br/><HeaderStyle BackColor="#AAAADD" Font-Bold="True" HorizontalAlign="Center"></HeaderStyle><br/><PagerStyle HorizontalAlign="Right" Mode="NumericPages"></PagerStyle><br/><Columns><br/><asp:BoundColumn HeaderText="标题" DataField="Title" HeaderStyle-Width="480px"><br/></asp:BoundColumn><br/><asp:BoundColumn HeaderText="发表日期" DataField="CreateDate" DataFormatString="{0:yyyy-MM-dd hh:mm:ss}"><br/></asp:BoundColumn><br/></Columns><br/></asp:datagrid><br/><p style="FONT-SIZE:9pt" align="center"><br/><asp:label id="lblPageCount" runat="server"></asp:label> <br/><asp:label id="lblCurrentIndex" runat="server"></asp:label><br/><asp:linkbutton id="btnFirst" <I>onclick</I>="PagerButt<I>onClick</I>" runat="server" Font-Name="verdana"<br/>Font-size="8pt" ForeColor="navy" CommandArgument="0"></asp:linkbutton> <br/><asp:linkbutton id="btnPrev" <I>onclick</I>="PagerButt<I>onClick</I>" runat="server" Font-Name="verdana"<br/>Font-size="8pt" ForeColor="navy" CommandArgument="prev"></asp:linkbutton> <br/><asp:linkbutton id="btnNext" <I>onclick</I>="PagerButt<I>onClick</I>" runat="server" Font-Name="verdana"<br/>Font-size="8pt" ForeColor="navy" CommandArgument="next"></asp:linkbutton> <br/><asp:linkbutton id="btnLast" <I>onclick</I>="PagerButt<I>onClick</I>" runat="server" Font-Name="verdana"<br/>Font-size="8pt" ForeColor="navy" CommandArgument="last"></asp:linkbutton><br/></p><br/></form><br/></body><br/></HTML><br/>

DataGridPaging.aspx.cs

using System;<br/>using System.Collections;<br/>using System.ComponentModel;<br/>using System.Data;<br/>using System.Data.OleDb;<br/>using System.Drawing;<br/>using System.Web;<br/>using System.Web.SessionState;<br/>using System.Web.UI;<br/>using System.Web.UI.WebControls;<br/>using System.Web.UI.HtmlControls;<br/>namespace eMeng.Exam.DataGridPaging<br/>{<br/>/// <summary><br/>/// DataGridPaging 的摘要说明。<br/>/// </summary><br/>public class DataGridPaging : System.Web.UI.Page<br/>{<br/>protected System.Web.UI.WebControls.DataGrid MyDataGrid;<br/>protected System.Web.UI.WebControls.Label lblPageCount;<br/>protected System.Web.UI.WebControls.Label lblCurrentIndex;<br/>protected System.Web.UI.WebControls.LinkButton btnFirst;<br/>protected System.Web.UI.WebControls.LinkButton btnPrev;<br/>protected System.Web.UI.WebControls.LinkButton btnNext;<br/>protected System.Web.UI.WebControls.LinkButton btnLast;<br/>private OleDbConnection cn = new OleDbConnection();<br/>private void Page_Load(object sender, System.EventArgs e)<br/>{<br/>// 在此处放置用户代码以初始化页面<br/>btnFirst.Text = "最首页";<br/>btnPrev.Text = "前一页";<br/>btnNext.Text = "下一页";<br/>btnLast.Text = "最后页";<br/>OpenDatabase();<br/>BindGrid();<br/>}<br/>private void OpenDatabase()<br/>{<br/>cn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("xxxx.mdb");<br/>cn.Open();<br/>}<br/>private void ShowStats()<br/>{<br/>lblCurrentIndex.Text = "第 " + (MyDataGrid.CurrentPageIndex + 1).ToString() + " 页";<br/>lblPageCount.Text = "总共 " + MyDataGrid.PageCount.ToString() + " 页";<br/>}<br/>public void PagerButt<I>onClick</I>(object sender, EventArgs e)<br/>{<br/>string arg = ((LinkButton)sender).CommandArgument.ToString();<br/>switch(arg)<br/>{<br/>case "next":<br/>if (MyDataGrid.CurrentPageIndex < (MyDataGrid.PageCount - 1))<br/>{<br/>MyDataGrid.CurrentPageIndex += 1;<br/>}<br/>break;<br/>case "prev":<br/>if (MyDataGrid.CurrentPageIndex > 0)<br/>{<br/>MyDataGrid.CurrentPageIndex -= 1;<br/>}<br/>break;<br/>case "last":<br/>MyDataGrid.CurrentPageIndex = (MyDataGrid.PageCount - 1);<br/>break;<br/>default:<br/>MyDataGrid.CurrentPageIndex = System.Convert.ToInt32(arg);<br/>break;<br/>}<br/>BindGrid();<br/>ShowStats();<br/>}<br/>public void BindGrid()<br/>{<br/>OleDbConnection myConnection = cn;<br/>DataSet ds = new DataSet();<br/>OleDbDataAdapter adapter = new OleDbDataAdapter("Select Title,CreateDate from Document", myConnection);<br/>adapter.Fill(ds, "Document");<br/>MyDataGrid.DataSource = ds.Tables["Document"].DefaultView;<br/>MyDataGrid.DataBind();<br/>ShowStats();<br/>}<br/>public void MyDataGrid_Page(object sender, DataGridPageChangedEventArgs e)<br/>{<br/>int startIndex ;<br/>startIndex = MyDataGrid.CurrentPageIndex * MyDataGrid.PageSize;<br/>MyDataGrid.CurrentPageIndex = e.NewPageIndex;<br/>BindGrid();<br/>ShowStats();<br/>}<br/>#region Web Form Designer generated code<br/>override protected void OnInit(EventArgs e)<br/>{<br/>//<br/>// CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。<br/>//<br/>InitializeComponent();<br/>base.OnInit(e);<br/>}<br/>/// <summary><br/>/// 设计器支持所需的方法 - 不要使用代码编辑器修改<br/>/// 此方法的内容。<br/>/// </summary><br/>private void InitializeComponent()<br/>{<br/>this.Load += new System.EventHandler(this.Page_Load);<br/>}<br/>#endregion<br/>}<br/>}<br/>

VB.NET版本


DataGridPaging.aspx

<%@ Page Language="vb" AutoEventWireup="false" Codebehind="DataGridPaging.aspx.vb" Inherits="DataGridPaging"%><br/><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><br/><HTML><br/><HEAD><br/></HEAD><br/><body MS_POSITIONING="GridLayout"><br/><form id="Form1" runat="server"><br/><asp:datagrid id="MyDataGrid" runat="server" AlternatingItemStyle-BackColor="#eeeeee"<br/>HeaderStyle-BackColor="#aaaadd" Font-Size="8pt" Font-Name="Verdana" CellSpacing="0"<br/>CellPadding="3" GridLines="Both" BorderWidth="1" BorderColor="black"<br/>OnPageIndexChanged="MyDataGrid_Page" PagerStyle-HorizontalAlign="Right"<br/>PagerStyle-Mode="NumericPages" PageSize="5" AllowPaging="True"><br/><AlternatingItemStyle BackColor="#EEEEEE"></AlternatingItemStyle><br/><HeaderStyle BackColor="#AAAADD"></HeaderStyle><br/><PagerStyle HorizontalAlign="Right" Mode="NumericPages"></PagerStyle><br/></asp:datagrid><br/><p style="font-size:9pt"><br/><asp:label id="lblPageCount" runat="server"></asp:label> <br/><asp:label id="lblCurrentIndex" runat="server"></asp:label><br/><asp:linkbutton id="btnFirst" <I>onclick</I>="PagerButt<I>onClick</I>" runat="server"<br/>Font-Name="verdana" Font-size="8pt" ForeColor="navy" CommandArgument="0"><br/></asp:linkbutton> <br/><asp:linkbutton id="btnPrev" <I>onclick</I>="PagerButt<I>onClick</I>" runat="server"<br/>Font-Name="verdana" Font-size="8pt" ForeColor="navy" CommandArgument="prev"><br/></asp:linkbutton> <br/><asp:linkbutton id="btnNext" <I>onclick</I>="PagerButt<I>onClick</I>" runat="server"<br/>Font-Name="verdana" Font-size="8pt" ForeColor="navy" CommandArgument="next"><br/></asp:linkbutton> <br/><asp:linkbutton id="btnLast" <I>onclick</I>="PagerButt<I>onClick</I>" runat="server"<br/>Font-Name="verdana" Font-size="8pt" ForeColor="navy" CommandArgument="last"><br/></asp:linkbutton><br/></p><br/></form><br/></body><br/></HTML><br/>

DataGridPaging.aspx.vb

Imports System.Data.SqlClient<br/>Imports System.Data<br/>Imports System.Web.UI<br/>Public Class DataGridPaging<br/>Inherits System.Web.UI.Page<br/>Protected WithEvents MyDataGrid As System.Web.UI.WebControls.DataGrid<br/>Protected WithEvents btnFirst As System.Web.UI.WebControls.LinkButton<br/>Protected WithEvents btnPrev As System.Web.UI.WebControls.LinkButton<br/>Protected WithEvents btnNext As System.Web.UI.WebControls.LinkButton<br/>Protected WithEvents btnLast As System.Web.UI.WebControls.LinkButton<br/>Protected WithEvents lblCurrentIndex As System.Web.UI.WebControls.Label<br/>Protected WithEvents lblPageCount As System.Web.UI.WebControls.Label<br/>Protected WithEvents DataGrid1 As System.Web.UI.WebControls.DataGrid<br/>#Region " Web Form Designer Generated Code "<br/>'This call is required by the Web Form Designer.<br/><System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()<br/>End Sub<br/>Private Sub Page_Init(ByVal sender As System.Object,_<br/>ByVal e As System.EventArgs) Handles MyBase.Init<br/>'CODEGEN: This method call is required by the Web Form Designer<br/>'Do not modify it using the code editor.<br/>InitializeComponent()<br/>End Sub<br/>#End Region<br/>Private Sub Page_Load(ByVal sender As System.Object,_<br/>ByVal e As System.EventArgs) Handles MyBase.Load<br/>btnFirst.Text = "最首页"<br/>btnPrev.Text = "前一页"<br/>btnNext.Text = "下一页"<br/>btnLast.Text = "最后页"<br/>OpenDatabase()<br/>BindGrid()<br/>End Sub<br/>Sub MyDataGrid_Page(ByVal sender As Object, ByVal e As DataGridPageChangedEventArgs)<br/>Dim startIndex As Integer<br/>startIndex = MyDataGrid.CurrentPageIndex * MyDataGrid.PageSize<br/>MyDataGrid.CurrentPageIndex = e.NewPageIndex<br/>BindGrid()<br/>ShowStats()<br/>End Sub<br/>Sub BindGrid()<br/>Dim myConnection As SqlConnection = cn<br/>Dim ds As DataSet = New DataSet()<br/>Dim adapter As SqlDataAdapter = New SqlDataAdapter("Select * from Orders", myConnection)<br/>adapter.Fill(ds, "Orders")<br/>MyDataGrid.DataSource = ds.Tables("Orders").DefaultView<br/>MyDataGrid.DataBind()<br/>ShowStats()<br/>End Sub<br/>Sub PagerButt<I>onClick</I>(ByVal sender As Object, ByVal e As EventArgs)<br/>'used by external paging UI<br/>Dim arg As String = sender.CommandArgument<br/>Select Case arg<br/>Case "next"<br/>If (MyDataGrid.CurrentPageIndex < (MyDataGrid.PageCount - 1)) Then<br/>MyDataGrid.CurrentPageIndex += 1<br/>End If<br/>Case "prev"<br/>If (MyDataGrid.CurrentPageIndex > 0) Then<br/>MyDataGrid.CurrentPageIndex -= 1<br/>End If<br/>Case "last"<br/>MyDataGrid.CurrentPageIndex = (MyDataGrid.PageCount - 1)<br/>Case Else<br/>'page number<br/>MyDataGrid.CurrentPageIndex = System.Convert.ToInt32(arg)<br/>End Select<br/>BindGrid()<br/>ShowStats()<br/>End Sub<br/>Sub ShowStats()<br/>lblCurrentIndex.Text = "第 " + (MyDataGrid.CurrentPageIndex + 1).ToString() + " 页"<br/>lblPageCount.Text = "总共 " + MyDataGrid.PageCount.ToString() + " 页"<br/>End Sub<br/>Public cn As New SqlClient.SqlConnection()<br/>Public Sub OpenDatabase()<br/>cn.ConnectionString = "Server=.;Database=NorthWind;User Id=sa;Password=;"<br/>cn.Open()<br/>End Sub<br/>End Class<br/>

方法2：完全后代码写法：例子


DataGridPaging2.aspx

<%@ Page language="c#" EnableViewState = "true" Codebehind="DataGridPaging2.aspx.cs" AutoEventWireup="false"<br/>Inherits="eMeng.Exam.DataGridPaging2.DataGridPaging2" %><br/><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><br/><HTML><br/><HEAD><br/><TITLE>功能齐全的分页的例子【2】</TITLE><br/></HEAD><br/><body MS_POSITIONING="GridLayout"><br/><form id="Form1" runat="server"><br/><asp:datagrid id="MyDataGrid" runat="server" AutoGenerateColumns="False" HorizontalAlign="Center"<br/>AlternatingItemStyle-BackColor="#eeeeee" HeaderStyle-BackColor="#aaaadd" Font-Size="8pt"<br/>Font-Name="Verdana" CellSpacing="0" CellPadding="3" GridLines="Both" BorderWidth="1"<br/>BorderColor="black" PagerStyle-HorizontalAlign="Right" PagerStyle-Mode="NumericPages"<br/>PageSize="5" AllowPaging="True"><br/><AlternatingItemStyle BackColor="#EEEEEE"></AlternatingItemStyle><br/><HeaderStyle BackColor="#AAAADD" Font-Bold="True" HorizontalAlign="Center"></HeaderStyle><br/><PagerStyle HorizontalAlign="Right" Mode="NumericPages"></PagerStyle><br/><Columns><br/><asp:BoundColumn HeaderText="标题" DataField="Title" HeaderStyle-Width="480px"></asp:BoundColumn><br/><asp:BoundColumn HeaderText="发表日期" DataField="CreateDate" <br/>DataFormatString="{0:yyyy-MM-dd hh:mm:ss}"></asp:BoundColumn><br/></Columns><br/></asp:datagrid><br/><p align="center"><br/><asp:label id="lblPageCount" runat="server" Font-Size="9pt" Font-Bold="True"></asp:label> <br/><asp:label id="lblCurrentIndex" runat="server" Font-Size="9pt" Font-Bold="True"></asp:label><br/><asp:linkbutton id="btnFirst" runat="server" Font-size="9pt" ForeColor="navy" CommandArgument="0"/> <br/><asp:linkbutton id="btnPrev" runat="server" Font-size="9pt" ForeColor="navy" CommandArgument="prev"/> <br/><asp:linkbutton id="btnNext" runat="server" Font-size="9pt" ForeColor="navy" CommandArgument="next"/> <br/><asp:linkbutton id="btnLast" runat="server" Font-size="9pt" ForeColor="navy" CommandArgument="last"/><br/></p><br/></form><br/></body><br/></HTML><br/>

DataGridPaging2.aspx.cs

using System;<br/>using System.Collections;<br/>using System.ComponentModel;<br/>using System.Data;<br/>using System.Data.OleDb;<br/>using System.Drawing;<br/>using System.Web;<br/>using System.Web.SessionState;<br/>using System.Web.UI;<br/>using System.Web.UI.WebControls;<br/>using System.Web.UI.HtmlControls;<br/>namespace eMeng.Exam.DataGridPaging2<br/>{<br/>/// <summary><br/>/// DataGridPaging 的摘要说明。<br/>/// </summary><br/>public class DataGridPaging2 : System.Web.UI.Page<br/>{<br/>protected System.Web.UI.WebControls.DataGrid MyDataGrid;<br/>protected System.Web.UI.WebControls.Label lblPageCount;<br/>protected System.Web.UI.WebControls.Label lblCurrentIndex;<br/>protected System.Web.UI.WebControls.LinkButton btnFirst;<br/>protected System.Web.UI.WebControls.LinkButton btnPrev;<br/>protected System.Web.UI.WebControls.LinkButton btnNext;<br/>protected System.Web.UI.WebControls.LinkButton btnLast;<br/>private OleDbConnection cn = new OleDbConnection();<br/>private void Page_Load(object sender, System.EventArgs e)<br/>{<br/>// 在此处放置用户代码以初始化页面<br/>btnFirst.Text = "最首页";<br/>btnPrev.Text = "前一页";<br/>btnNext.Text = "下一页";<br/>btnLast.Text = "最后页";<br/>OpenDatabase();<br/>BindGrid();<br/>}<br/>private void OpenDatabase()<br/>{<br/>cn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="<br/>+ HttpContext.Current.Server.MapPath("../../aspxWeb.mdb.ascx");<br/>cn.Open();<br/>}<br/>private void ShowStats()<br/>{<br/>lblCurrentIndex.Text = "第 " + (MyDataGrid.CurrentPageIndex + 1).ToString() + " 页";<br/>lblPageCount.Text = "总共 " + MyDataGrid.PageCount.ToString() + " 页";<br/>}<br/>public void PagerButt<I>onClick</I>(object sender, EventArgs e)<br/>{<br/>string arg = ((LinkButton)sender).CommandArgument.ToString();<br/>switch(arg)<br/>{<br/>case "next":<br/>if (MyDataGrid.CurrentPageIndex < (MyDataGrid.PageCount - 1))<br/>{<br/>MyDataGrid.CurrentPageIndex += 1;<br/>}<br/>break;<br/>case "prev":<br/>if (MyDataGrid.CurrentPageIndex > 0)<br/>{<br/>MyDataGrid.CurrentPageIndex -= 1;<br/>}<br/>break;<br/>case "last":<br/>MyDataGrid.CurrentPageIndex = (MyDataGrid.PageCount - 1);<br/>break;<br/>default:<br/>MyDataGrid.CurrentPageIndex = System.Convert.ToInt32(arg);<br/>break;<br/>}<br/>BindGrid();<br/>ShowStats();<br/>}<br/>public void BindGrid()<br/>{<br/>OleDbConnection myConnection = cn;<br/>DataSet ds = new DataSet();<br/>OleDbDataAdapter adapter = new OleDbDataAdapter("Select Title,CreateDate from Document", myConnection);<br/>adapter.Fill(ds, "Document");<br/>MyDataGrid.DataSource = ds.Tables["Document"].DefaultView;<br/>MyDataGrid.DataBind();<br/>ShowStats();<br/>}<br/>#region Web Form Designer generated code<br/>override protected void OnInit(EventArgs e)<br/>{<br/>//<br/>// CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。<br/>//<br/>InitializeComponent();<br/>base.OnInit(e);<br/>}<br/>/// <summary><br/>/// 设计器支持所需的方法 - 不要使用代码编辑器修改<br/>/// 此方法的内容。<br/>/// </summary><br/>private void InitializeComponent()<br/>{<br/>this.MyDataGrid.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.OnPageIndexChanged);<br/>this.btnFirst.Click += new System.EventHandler(this.PagerButt<I>onClick</I>);<br/>this.btnPrev.Click += new System.EventHandler(this.PagerButt<I>onClick</I>);<br/>this.btnNext.Click += new System.EventHandler(this.PagerButt<I>onClick</I>);<br/>this.btnLast.Click += new System.EventHandler(this.PagerButt<I>onClick</I>);<br/>this.Load += new System.EventHandler(this.Page_Load);<br/>}<br/>#endregion<br/>private void OnPageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)<br/>{<br/>int startIndex ;<br/>startIndex = MyDataGrid.CurrentPageIndex * MyDataGrid.PageSize;<br/>MyDataGrid.CurrentPageIndex = e.NewPageIndex;<br/>BindGrid();<br/>ShowStats();<br/>}<br/>}<br/>}<br/>作者：孟宪会 出自：【孟宪会之精彩世界】




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