求教:repeater动态绑定checkbox的checkedchange方法,执行不了

hebpay 2012-02-19 02:32:42

在Repeater里使用checkbox,想让每次点击checkbox执行一个操作.autopostback已经设置成true了.
在Repeater的ItemCreated里动态绑定checkbox的oncheckedchange方法.也不报错,但就是不执行.求高人指点.

我在<asp:checkbox 里写上oncheckedChange就可以执行.移到后台绑定的上就执行不了.
==================================================================
webform1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="brandAdmin.brandAdmin.WebForm1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Repeater ID="testList" runat="server">
<ItemTemplate>
<asp:CheckBox runat="server" ID="checkBox" AutoPostBack="true"/><%#Container.DataItem %><br />
</ItemTemplate>
</asp:Repeater>
</div>
</form>
</body>
</html>
============================================================
webform1.aspx.cs
using System;
using System.Web.UI.WebControls;

namespace brandAdmin.brandAdmin
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
testList.ItemCreated += new RepeaterItemEventHandler(testList_ItemCreated);
if (!IsPostBack)
{
string[] dataSource = { "aaaaaaaaaaa", "bbbbbbbbbbbb", "cccccccccccc", "ddddddddddddddd" };
testList.DataSource = dataSource;
testList.DataBind();
}
Response.Write(DateTime.Now.ToString());
}

void testList_ItemCreated(object sender, RepeaterItemEventArgs e)
{
((CheckBox)e.Item.FindControl("checkBox")).CheckedChanged += new EventHandler(WebForm1_CheckedChanged);
}

public void WebForm1_CheckedChanged(object sender, EventArgs e)
{
Response.Write("Changed");
}
}
}

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孟子E章 2012-02-19

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完整的测试代码

<%@ Page Language="C#" AutoEventWireup="true" EnableViewState="true" %>



<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  protected void Page_PreInit(object sender, EventArgs e)

  {

    testList.ItemCreated += new RepeaterItemEventHandler(testList_ItemCreated);

  }

  protected void Page_Load(object sender, EventArgs e)

  {

    if (!IsPostBack)

    {

      string[] dataSource = { "aaaaaaaaaaa", "bbbbbbbbbbbb", "cccccccccccc", "ddddddddddddddd" };

      testList.DataSource = dataSource;

      testList.DataBind();

    }

  }



  void testList_ItemCreated(object sender, RepeaterItemEventArgs e)

  {

    ((CheckBox)e.Item.FindControl("checkBox")).CheckedChanged += new EventHandler(WebForm1_CheckedChanged);

  }



  public void WebForm1_CheckedChanged(object sender, EventArgs e)

  {

    Response.Write("Changed: 你点击的是 " + (sender as CheckBox).Text);

  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

  <title></title>

</head>

<body>

  <form id="form1" runat="server">

  <asp:Repeater ID="testList" runat="server">

    <ItemTemplate>

      <asp:CheckBox runat="server" ID="checkBox" AutoPostBack="true" Text="<%#Container.DataItem %>" /><br />

    </ItemTemplate>

  </asp:Repeater>

  </form>

</body>

</html>