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一个功能齐全的DataGrid分页例子

点击次数:37 次 发布日期:2008-11-21 22:21:02 作者:源代码网
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源代码网整理以下 

源代码网整理以下

以下为引用的内容:

源代码网整理以下C#版本

源代码网整理以下DataGridPaging.aspx

源代码网整理以下<%@ 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>

源代码网整理以下DataGridPaging.aspx.cs

源代码网整理以下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;

源代码网整理以下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();

源代码网整理以下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";
}

源代码网整理以下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();
}

源代码网整理以下#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);
}

源代码网整理以下/// <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);

源代码网整理以下}
#endregion
}
}

源代码网整理以下
VB.NET版本

源代码网整理以下DataGridPaging.aspx

源代码网整理以下<%@ Page Language="vb" AutoEventWireup="false" Codebehind="DataGridPaging.aspx.vb" Inherits="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" 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"></HeaderStyle>
    <PagerStyle HorizontalAlign="Right" Mode="NumericPages"></PagerStyle>
   </asp:datagrid>
   <p style="font-size:9pt">
    <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>

源代码网整理以下DataGridPaging.aspx.vb

源代码网整理以下Imports System.Data.SqlClient
Imports System.Data
Imports System.Web.UI

源代码网整理以下Public Class DataGridPaging
 Inherits System.Web.UI.Page

源代码网整理以下 Protected WithEvents MyDataGrid As System.Web.UI.WebControls.DataGrid
 Protected WithEvents btnFirst As System.Web.UI.WebControls.LinkButton
 Protected WithEvents btnPrev As System.Web.UI.WebControls.LinkButton
 Protected WithEvents btnNext As System.Web.UI.WebControls.LinkButton
 Protected WithEvents btnLast As System.Web.UI.WebControls.LinkButton
 Protected WithEvents lblCurrentIndex As System.Web.UI.WebControls.Label
 Protected WithEvents lblPageCount As System.Web.UI.WebControls.Label
 Protected WithEvents DataGrid1 As System.Web.UI.WebControls.DataGrid

源代码网整理以下#Region " Web Form Designer Generated Code "

源代码网整理以下 "This call is required by the Web Form Designer.
 <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

源代码网整理以下 End Sub

源代码网整理以下 Private Sub Page_Init(ByVal sender As System.Object,_
  ByVal e As System.EventArgs) Handles MyBase.Init
  "CODEGEN: This method call is required by the Web Form Designer
  "Do not modify it using the code editor.
  InitializeComponent()
 End Sub

源代码网整理以下#End Region

源代码网整理以下 Private Sub Page_Load(ByVal sender As System.Object,_
  ByVal e As System.EventArgs) Handles MyBase.Load
  btnFirst.Text = "最首页"
  btnPrev.Text = "前一页"
  btnNext.Text = "下一页"
  btnLast.Text = "最后页"
  OpenDatabase()
  BindGrid()
 End Sub

源代码网整理以下
 Sub MyDataGrid_Page(ByVal sender As Object, ByVal e As DataGridPageChangedEventArgs)
  Dim startIndex As Integer
  startIndex = MyDataGrid.CurrentPageIndex * MyDataGrid.PageSize
  MyDataGrid.CurrentPageIndex = e.NewPageIndex
  BindGrid()
  ShowStats()
 End Sub

源代码网整理以下 Sub BindGrid()
  Dim myConnection As SqlConnection = cn
  Dim ds As DataSet = New DataSet()
  Dim adapter As SqlDataAdapter = New SqlDataAdapter("Select * from Orders", myConnection)
  adapter.Fill(ds, "Orders")
  MyDataGrid.DataSource = ds.Tables("Orders").DefaultView
  MyDataGrid.DataBind()
  ShowStats()

源代码网整理以下 End Sub

源代码网整理以下 Sub PagerButtonClick(ByVal sender As Object, ByVal e As EventArgs)
  "used by external paging UI
  Dim arg As String = sender.CommandArgument

源代码网整理以下  Select Case arg
   Case "next"
    If (MyDataGrid.CurrentPageIndex < (MyDataGrid.PageCount - 1)) Then
     MyDataGrid.CurrentPageIndex += 1
    End If
   Case "prev"
    If (MyDataGrid.CurrentPageIndex > 0) Then
     MyDataGrid.CurrentPageIndex -= 1
    End If
   Case "last"
    MyDataGrid.CurrentPageIndex = (MyDataGrid.PageCount - 1)
   Case Else
    "page number
    MyDataGrid.CurrentPageIndex = System.Convert.ToInt32(arg)
  End Select
  BindGrid()
  ShowStats()
 End Sub

源代码网整理以下 Sub ShowStats()
  lblCurrentIndex.Text = "第 " + (MyDataGrid.CurrentPageIndex + 1).ToString() + " 页"
  lblPageCount.Text = "总共 " + MyDataGrid.PageCount.ToString() + " 页"
 End Sub

源代码网整理以下Public cn As New SqlClient.SqlConnection()
 Public Sub OpenDatabase()
  cn.ConnectionString = "Server=.;Database=NorthWind;User Id=sa;Password=;"
  cn.Open()
 End Sub
End Class

源代码网供稿.
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