在DataGrid中添加Radio（单选按钮）列

<p>//DataGridRadio.aspx<br></p>
<%@ Page language="c#" Codebehind="DataGridRadio.aspx.cs" AutoEventWireup="false" Inherits="Sample.DataGridRadio" %>
<meta content="Microsoft Visual Studio .NET 7.1" name=GENERATOR>
<meta content=C# name=CODE_LANGUAGE>
<meta content=JavaScript name=vs_defaultClientScript>
<meta content=http://schemas.microsoft.com/intellisense/ie5 name=vs_targetSchema>
<form id=Form1 method=post runat="server">
    <input id=rd type=hidden name=rd runat="server"><asp:datagrid id=ItemsGrid runat="server" OnPageIndexChanged="Grid_Change" AutoGenerateColumns="false" AllowPaging="true" CellPadding="3" BorderWidth="1" BorderColor="black">
    <headerstyle BackColor="#00aaaa">
    </headerstyle>
    <pagerstyle Mode="NumericPages"></pagerstyle>
    <columns><asp:templatecolumn><itemtemplate><input type=radio value='<%# DataBinder.Eval(Container.DataItem, "IntegerValue")%>' name=RadioName> </itemtemplate></asp:templatecolumn><asp:boundcolumn DataField="IntegerValue" HeaderText="数字列"></asp:boundcolumn><asp:boundcolumn DataField="StringValue" HeaderText="字符串列"></asp:boundcolumn><asp:boundcolumn DataField="CurrencyValue" HeaderText="货币列" DataFormatString="{0:c}"><itemstyle HorizontalAlign="right"></itemstyle></asp:boundcolumn></columns></asp:datagrid><br><asp:button id=Btn onclick=btnClick runat="server" Text="看你选择的"></asp:button><asp:label id=Label1 runat="server" Text=""></asp:label>
</form>

// DataGridRadio.aspx.cs

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;

namespace Sample
{
 /// <summary>
 /// DataGridRadio 的摘要说明。
 /// </summary>
 public class DataGridRadio : System.Web.UI.Page
 {
  protected System.Web.UI.WebControls.DataGrid ItemsGrid;
  protected System.Web.UI.WebControls.Button Btn;
  protected System.Web.UI.WebControls.Label Label1;
  protected System.Web.UI.HtmlControls.HtmlInputHidden rd;

  ICollection CreateDataSource() 
  { 
   DataTable dt = new DataTable();
   DataRow dr;  
   dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));
   dt.Columns.Add(new DataColumn("StringValue", typeof(string)));
   dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double))); 
   for ( int i = 0 ; i < 101 ; i++ ) 
   {  
    dr = dt.NewRow();  
    dr[0] = i; 
    dr[1] = "Item " + i.ToString();
    dr[2] = 1.23 * ( i + 1 );  
    dt.Rows.Add(dr); 
   }  
   DataView dv = new DataView( dt );
   return dv;
  }
 
  private void Page_Load(object sender, System.EventArgs e)
  {
   // 在此处放置用户代码以初始化页面
   string js = "";
   js += "<script>\r\n";
   js += "function ld(){\r\n";
   js += "for(i=0;i<document.getElementsByName('RadioName').length;i++)\r\n";
   js += "if(document.getElementsByName('RadioName')[i].value==";
   js += "document.getElementById('" + rd.ClientID + "').value) "; 
   js += "document.getElementsByName('RadioName')[i].checked=true\r\n"; 
   js += "}\r\n";   js+="window.onload=ld\r\n"; 
   js += "</"+"script>\r\n"; 
   this.RegisterStartupScript( "js" , js );
   if (!IsPostBack)     
   {      
    ItemsGrid.DataSource = CreateDataSource(); 
    ItemsGrid.DataBind();
   }

  }

  public void Grid_Change(Object sender, DataGridPageChangedEventArgs e) 
  {   
   ItemsGrid.CurrentPageIndex = e.NewPageIndex; 
   ItemsGrid.DataSource = CreateDataSource(); 
   ItemsGrid.DataBind(); 
  } 
  
  public void btnClick(Object sender, EventArgs e)
  { 
   if(Request.Form["RadioName"] != null)
   {
    rd.Value = Request.Form["RadioName"].ToString(); 
    Label1.Text = "您所选择的是：<font color=red>" + Request.Form["RadioName"].ToString() +"</font>"; 
   }
  }

  #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.Load += new System.EventHandler(this.Page_Load);

  }
  #endregion
 }
}