日期:2014-05-17  浏览次数:20490 次

这个问题我不知写什么标题好…反正是求帮忙…………!!
Table2是一个数据库表……调试时他说“myDataList”的 DataSourceID 必须是 IDataSource 类型的控件的 ID。未能找到 ID 为“Table2”的控件。”,我不懂怎么解决……求帮忙!! (还有,如果发错论坛就提示下啊)
以下是C#代码:
[code=C#][/code]using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;

namespace DataList控件
{
  public partial class _Default : System.Web.UI.Page
  {
  private void Repeater0()
  {
  string myConnectionString = "Data Source=li-pc\\sqlexpress;Initial Catalog=测试数据库2;Integrated Security=True";
  SqlConnection myConnection = new SqlConnection(myConnectionString);
  string cmdString = "select top 5 * from Table2";
  SqlCommand myCommand = new SqlCommand(cmdString,myConnection);
  myConnection.Open();
  SqlDataReader myReader = myCommand.ExecuteReader();
  myDataList.DataSource = myReader;
  myDataList.DataBind();
  myReader.Close();
  myConnection.Close();
  }
  protected void Page_Load(object sender, EventArgs e)
  {
  if (!IsPostBack)
  Repeater0();
  }

  protected void myDataList_ItemCommand(object source,DataListCommandEventArgs e)
  {
  if (e.CommandName.ToLower() == "Show")
  {
  Label name = (Label)e.Item.FindControl("name");
  Label city = (Label)e.Item.FindControl("city");
  Label address = (Label)e.Item.FindControl("address");
  if (name != null && city != null && address != null)
  {
  myLabel1.Text = name.Text + "" + city.Text + "" + address.Text + "";
  }
  }
  }
  }
}
以下是HTML代码:
[code=HTML][/code]<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="DataList控件._Default" %>

<!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>
  <h1>DataList控件演示</h1>
  <asp:DataList ID="myDataList" runat="server" BackColor="Black" 
  BorderWidth="1px" OnItemCommand="myDataList_ItemCommand" 
  DataSourceID="Table2" >
   
   
   
  <HeaderTemplate>
  <table border="1" cellpadding="0" cellspacing="0">
  <tr><td>客户名称</td><td>所在城市</td><td>联系地址</td></tr>
  </HeaderTemplate>
  <ItemTemplate>
  <tr>
  <td><asp:Label ID="name" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"name") %>'></asp:Label></td>