网友问这个问题,写了一个简单的例子:
![](https://www.cnblogs.com/images/cnblogs_com/lovecherry/sd903j40-asdasd.jpg)
![](https://www.cnblogs.com/images/cnblogs_com/lovecherry/df034njsd03jsf.jpg)
前台:
![](https://www.cnblogs.com/images/cnblogs_com/lovecherry/sd903j40-asdasd.jpg)
![](https://www.cnblogs.com/images/cnblogs_com/lovecherry/df034njsd03jsf.jpg)
前台:
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<%@ Page language="c#" Codebehind="WebForm4.aspx.cs" AutoEventWireup="false" Inherits="WebApplication25.WebForm4" %>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
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<HTML>
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<HEAD>
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<title>WebForm4</title>
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<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
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<meta name="CODE_LANGUAGE" Content="C#">
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<meta name="vs_defaultClientScript" content="JavaScript">
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<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
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</HEAD>
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<body>
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<form id="Form1" method="post" runat="server">
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<asp:DataGrid id="DataGrid1" runat="server" AutoGenerateColumns="False" DataKeyField="EmployeeID">
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<Columns>
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<asp:TemplateColumn>
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<ItemTemplate>
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<input type="hidden" id="SelectedID" runat="server" value='<%# Container.ItemIndex%>' name="SelectedID"/>
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<asp:CheckBox ID="chkExport" Runat="server" />
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</ItemTemplate>
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</asp:TemplateColumn>
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<asp:BoundColumn DataField="EmployeeID" HeaderText="EmployeeID"></asp:BoundColumn>
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<asp:TemplateColumn HeaderText="FirstName">
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<ItemTemplate>
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<asp:Label ID="lab_FirstName" Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"FirstName")%>'>
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</asp:Label>
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<asp:TextBox ID="txt_FirstName" Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"FirstName")%>' Visible="False">
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</asp:TextBox>
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</ItemTemplate>
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</asp:TemplateColumn>
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<asp:TemplateColumn HeaderText="LastName">
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<ItemTemplate>
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<asp:Label ID="lab_LastName" Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"LastName")%>'>
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</asp:Label>
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<asp:TextBox ID="txt_LastName" Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"LastName")%>' Visible="False">
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</asp:TextBox>
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</ItemTemplate>
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</asp:TemplateColumn>
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</Columns>
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</asp:DataGrid>
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<asp:Button id="Button1" runat="server" Text="编辑"></asp:Button>
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<asp:Button id="Button2" runat="server" Text="更新"></asp:Button>
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</form>
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</body>
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</HTML>
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后台:
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using System;
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using System.Collections;
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using System.ComponentModel;
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using System.Data;
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using System.Data.SqlClient;
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using System.Drawing;
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using System.Web;
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using System.Web.SessionState;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.HtmlControls;
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namespace WebApplication25
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{
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/// <summary>
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/// WebForm4 的摘要说明。
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/// </summary>
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public class WebForm4 : System.Web.UI.Page
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{
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protected System.Web.UI.WebControls.Button Button1;
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protected System.Web.UI.WebControls.Button Button2;
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protected System.Web.UI.WebControls.DataGrid DataGrid1;
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protected System.Web.UI.HtmlControls.HtmlInputHidden SelectID;
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private void Page_Load(object sender, System.EventArgs e)
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{
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// 在此处放置用户代码以初始化页面
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if(!IsPostBack)
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{
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SetBind();
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}
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}
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private void SetBind()
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{
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SqlConnection conn=new SqlConnection("server=srvxglai-sha;uid=sa;pwd=321413;database=northwind");
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SqlDataAdapter da=new SqlDataAdapter("select * from Employees",conn);
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DataSet ds=new DataSet();
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da.Fill(ds,"table1");
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this.DataGrid1.DataSource=ds.Tables["table1"];
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this.DataGrid1.DataBind();
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}
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#region Web 窗体设计器生成的代码
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override protected void OnInit(EventArgs e)
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{
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//
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// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
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//
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InitializeComponent();
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base.OnInit(e);
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}
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/// <summary>
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/// 设计器支持所需的方法 - 不要使用代码编辑器修改
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/// 此方法的内容。
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/// </summary>
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private void InitializeComponent()
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{
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this.Button1.Click += new System.EventHandler(this.Button1_Click);
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this.Button2.Click += new System.EventHandler(this.Button2_Click);
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this.Load += new System.EventHandler(this.Page_Load);
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}
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#endregion
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private void Button1_Click(object sender, System.EventArgs e)
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{
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foreach(DataGridItem di in this.DataGrid1.Items)
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{
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if(((CheckBox)di.FindControl("chkExport")).Checked==true)
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{
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((TextBox)di.FindControl("txt_FirstName")).Visible=true;
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((TextBox)di.FindControl("txt_LastName")).Visible=true;
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((Label)di.FindControl("lab_FirstName")).Visible=false;
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((Label)di.FindControl("lab_LastName")).Visible=false;
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}
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}
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}
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private void Button2_Click(object sender, System.EventArgs e)
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{
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foreach(DataGridItem di in this.DataGrid1.Items)
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{
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if(((CheckBox)di.FindControl("chkExport")).Checked==true)
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{
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if(((TextBox)di.FindControl("txt_FirstName")).Text!=((Label)di.FindControl("lab_FirstName")).Text||((TextBox)di.FindControl("txt_LastName")).Text!=((Label)di.FindControl("lab_LastName")).Text)
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{
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Response.Write("记录号:"+this.DataGrid1.DataKeys[int.Parse(((HtmlInputHidden)di.FindControl("SelectedID")).Value)]+",FirstName:"+((TextBox)di.FindControl("txt_FirstName")).Text+",LastName:"+((TextBox)di.FindControl("txt_LastName")).Text+"<br>");
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}
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((TextBox)di.FindControl("txt_FirstName")).Visible=false;
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((TextBox)di.FindControl("txt_LastName")).Visible=false;
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((Label)di.FindControl("lab_FirstName")).Visible=true;
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((Label)di.FindControl("lab_LastName")).Visible=true;
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((CheckBox)di.FindControl("chkExport")).Checked=false;
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}
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}
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}
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}
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}
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