如何在后台(.cs文件中)动态添加Ajax中的AutoCompleteExtender(自动完成)控件？
如题：
我在页面中放置了两个TextBox文本框，TextBox1采取直接添加AutoCompaleteExtender的方法，TextBox2则采取在后台动态添加的方法，调试运行时，第一个一切正常，第二个没有反应。不知道是什么原因，代码如下：
Default2.aspx文件：
<%@ Page Language= "C# " AutoEventWireup= "true " CodeFile= "Default2.aspx.cs " Inherits= "Default2 " %>
<%@ Register Assembly= "AjaxControlToolkit " Namespace= "AjaxControlToolkit " TagPrefix= "cc1 " %>
<!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> 无标题页 </title>
</head>
<body>
<form id= "form1 " runat= "server ">
<div>
<asp:ScriptManager ID= "ScriptManager1 " runat= "server ">
</asp:ScriptManager>
<asp:UpdatePanel ID= "UpdatePanel1 " runat= "server ">
<ContentTemplate>
<asp:TextBox ID= "TextBox1 " runat= "server "> </asp:TextBox>
<cc1:AutoCompleteExtender ID= "AutoCompleteExtender1 " runat= "server " TargetControlID= "TextBox1 "
ServicePath= "~/Journey_Manage/AutoCompleteWebService.asmx "
ServiceMethod= "GetJourneyCity "
MinimumPrefixLength= "2 "
CompletionInterval= "100 "
EnableCaching= "true "
CompletionSetCount= "10 ">
</cc1:AutoCompleteExtender>
<asp:TextBox ID= "TextBox2 " runat= "server "> </asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
------------------------------
Default2.aspx.cs文件
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using AjaxControlToolkit;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
AutoCompleteExtender auc = new AutoCompleteExtender();
auc.ID = "autoComplete2 ";
auc.TargetControlID = "TextBox2 ";
auc.ServicePath = "AutoCompleteWebService.asmx ";
auc.ServiceMethod = "GetJourneyVehicle ";
auc.MinimumPrefixLength = 1;
auc.CompletionInterval = 100;
auc.EnableCaching = true;
auc.CompletionSetCount = 10;
}
}
[解决办法]
AutoCompleteExtender auc = new AutoCompleteExtender();
auc.ID = "autoComplete2 ";
auc.TargetControlID = "TextBox2 ";
auc.ServicePath = "AutoCompleteWebService.asmx ";
auc.ServiceMethod = "GetJourneyVehicle ";
auc.MinimumPrefixLength = 1;
auc.CompletionInterval = 100;
auc.EnableCaching = true;
auc.CompletionSetCount = 10;
----------------------------------------------
UpdatePanel1.controls.add(auc);