一个DataGrid多次绑定不同数据的时候我的用法

一个DataGrid多次绑定不同数据的时候我的用法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>

</HEAD>

<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>

<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'>

<asp:BoundColumn DataField='id' HeaderText='编号'>

</asp:BoundColumn>

<asp:BoundColumn DataField='barname' HeaderText='网吧名称'>

</asp:BoundColumn>

<asp:BoundColumn DataField='medianame' HeaderText='观看电影'>

</asp:BoundColumn>

<asp:BoundColumn DataField='addtime' HeaderText='观看时间' DataFormatString='{0:d}'>

</asp:BoundColumn>

</Columns>

</asp:DataGrid>

</TD>

</TR>

<TR>

</TD>

</TR>

</TABLE>

</form>

</body>

</HTML>