在DataGrid中添加Radio（单选按钮）列

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ASP C C++C#HTML

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<%@ Page Language="C#" AutoEventWireup="True" EnableViewState = "true"%>
<%@ Import Namespace="System.Data" %>
<html>
<script runat="server">
DataTable Cart;
DataView CartView;
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;
}

void Page_Load(Object sender, EventArgs e)
{
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();
     }
}
void Grid_Change(Object sender, DataGridPageChangedEventArgs e)
{
     ItemsGrid.CurrentPageIndex = e.NewPageIndex;
     ItemsGrid.DataSource = CreateDataSource();
     ItemsGrid.DataBind();
}
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>";
    }
}

</script>
<body>
<form runat="server" id=MM>
<input type="hidden" id=rd runat=server/>
<asp:DataGrid id="ItemsGrid" runat="server"
   BorderColor="black" BorderWidth="1"
   CellPadding="3" AllowPaging="true"
   AutoGenerateColumns="false"
   OnPageIndexChanged="Grid_Change">
<HeaderStyle BackColor="#00aaaa"></HeaderStyle>
<PagerStyle Mode="NumericPages"></PagerStyle>