一个DataGrid多次绑定不同数据的时候我的用法

来源：互联网发布：电脑打码软件编辑：程序博客网时间：2024/04/30 02:45

在一个页面中要实现数据全部的显示和搜索.

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using Microsoft.ApplicationBlocks.Data;

namespace NetBarView.AdminManage
{
/// <summary>
/// showlog 的摘要说明。
/// </summary>
public class showlog : System.Web.UI.Page
{
  private string conStr = System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"];
  protected System.Web.UI.WebControls.TextBox tbSearch;
  protected System.Web.UI.WebControls.Button btnSearch;
  protected System.Web.UI.WebControls.DataGrid dg;

  private void Page_Load(object sender, System.EventArgs e)
  {
   // 在此处放置用户代码以初始化页面
   if(!this.IsPostBack)
   {
    BindToDG();
   }
  }
  private void BindToDG()
  {
   dg.DataSource = SqlHelper.ExecuteDataset(conStr,CommandType.StoredProcedure,"mediaLogList");
   dg.DataKeyField = "id";
   dg.DataBind();
  }

  #region Web 窗体设计器生成的代码
  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.btnSearch.Click += new System.EventHandler(this.btnSearch_Click);
   this.dg.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.dg_PageIndexChanged);
   this.Load += new System.EventHandler(this.Page_Load);

}
#endregion

  private void dg_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
  {
   dg.CurrentPageIndex = e.NewPageIndex;
   if(this.tbSearch.Text == "")
   {
    BindToDG();
   }
   else
   {
    SearchBind();
   }
  }
  private void SearchBind()
  {
//   string sql = "select id,(select barname from baruser where id=barid)as barname,medianame,addtime from medialog where barname=@barname order by id desc";
   SqlParameter pm = new SqlParameter("@barname",SqlDbType.VarChar,50);
   pm.Value = this.tbSearch.Text;
   dg.DataSource = SqlHelper.ExecuteDataset(conStr,CommandType.StoredProcedure,"mediaLogSearch",pm);
   dg.CurrentPageIndex = 0;
   dg.DataKeyField = "id";
   dg.DataBind();
  }

  private void btnSearch_Click(object sender, System.EventArgs e)
  {
//   SearchBind();
  }
}
}

<%@ Page language="c#" Codebehind="showlog.aspx.cs" AutoEventWireup="false" Inherits="NetBarView.AdminManage.showlog" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
  <title>showlog</title>
  <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
  <meta name="CODE_LANGUAGE" Content="C#">
  <meta name="vs_defaultClientScript" content="JavaScript">
  <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout" bgcolor="#799ae1" style="margin-left:0px">
  <form id="Form1" method="post" runat="server">
   <TABLE id="Table1" style="FONT-SIZE: 9pt; WIDTH: 600px" borderColor="#ccccff" cellSpacing="1"
    cellPadding="0" width="907" border="1">
    <TR>
     <TD style="HEIGHT: 25px" align="center" bgColor="#6699ff" colSpan="3">网吧电影观看日志</TD>
    </TR>
    <TR>
     <TD style="HEIGHT: 25px" align="center" colSpan="3"><FONT face="宋体">网吧搜索     
       <asp:TextBox id="tbSearch" runat="server"></asp:TextBox>      
       <asp:Button id="btnSearch" runat="server" Text="搜索"></asp:Button></FONT></TD>
    </TR>
    <TR>
     <TD style="WIDTH: 575px" vAlign="top" align="left" width="575" colSpan="2">
      <asp:DataGrid id="dg" runat="server" Width="384px" AutoGenerateColumns="False" AllowPaging="True"
       PageSize="30" Font-Size="X-Small" BorderColor="#3366CC" BorderStyle="None" BorderWidth="1px"
       BackColor="White" CellPadding="4">
       <FooterStyle ForeColor="#003399" BackColor="#99CCCC"></FooterStyle>
       <SelectedItemStyle Font-Bold="True" ForeColor="#CCFF99" BackColor="#009999"></SelectedItemStyle>
       <ItemStyle ForeColor="#003399" BackColor="White"></ItemStyle>
       <HeaderStyle Font-Bold="True" ForeColor="#CCCCFF" BackColor="#003399"></HeaderStyle>
       <Columns>
        <asp:BoundColumn DataField="id" HeaderText="编号">
         <HeaderStyle Width="40px"></HeaderStyle>
        </asp:BoundColumn>
        <asp:BoundColumn DataField="barname" HeaderText="网吧名称">
         <HeaderStyle Width="120px"></HeaderStyle>
        </asp:BoundColumn>
        <asp:BoundColumn DataField="medianame" HeaderText="观看电影">
         <HeaderStyle Width="120px"></HeaderStyle>
        </asp:BoundColumn>
        <asp:BoundColumn DataField="addtime" HeaderText="观看时间" DataFormatString="{0:d}">
         <HeaderStyle Width="60px"></HeaderStyle>
        </asp:BoundColumn>
       </Columns>
       <PagerStyle HorizontalAlign="Left" ForeColor="#003399" BackColor="#99CCCC" Mode="NumericPages"></PagerStyle>
      </asp:DataGrid>
     </TD>
     <TD width="2"></TD>
    </TR>
    <TR>
     <TD style="WIDTH: 1px"></TD>
     <TD align="center" style="WIDTH: 291px">
     </TD>
     <TD width="2"><FONT face="宋体"></FONT></TD>
    </TR>
   </TABLE>
  </form>
</body>
</HTML>