我先是在官方下载安装了ASP.NET AJAX 1.0 后来又下载了AJAX Control Toolkit 也在工具栏导入了AjaxControlToolkit.dll
虽然控件都有了，但是新建页的时候，没有AJAX页，我在普通页里面放置了 AJAX控件也没有效果。也不知道我是没有装好还是代码没有写好。下面是代码：
- HTML code
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TagDetail.aspx.cs" Inherits="com.rms.web.recipt.TagDetail" MasterPageFile="~/master/BaseEdit.Master" %><%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Web.UI" TagPrefix="asp" %><asp:Content ContentPlaceHolderID="ContentPlaceHolder1" runat="server"><script type="text/javascript" language="javascript"> function ShowNo() //隐藏两个层 { document.getElementById("doing").style.display="none"; document.getElementById("divLogin").style.display="none"; } function $(id) { return (document.getElementById) ? document.getElementById(id) : document.all[id] ; } function showFloat() //根据屏幕的大小显示两个层 { var range = getRange(); $('doing').style.width = range.width + "px"; $('doing').style.height = range.height + "px"; $('doing').style.display = "block"; document.getElementById("divLogin").style.display=""; } function getRange() //得到屏幕的大小 { var top = document.body.scrollTop; var left = document.body.scrollLeft; var height = document.body.clientHeight; var width = document.body.clientWidth; if (top==0 && left==0 && height==0 && width==0) { top = document.documentElement.scrollTop; left = document.documentElement.scrollLeft; height = document.documentElement.clientHeight; width = document.documentElement.clientWidth; } return {top:top ,left:left ,height:height ,width:width } ; } </script> <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional"><ContentTemplate><table> <tr> <td> 变量编号：</td> <td style="width: 80px"><asp:TextBox ID="txt_TagID" runat="server" Width="85px"></asp:TextBox></td> <td>变量名称：</td> <td style="width: 221px"><asp:TextBox ID="txt_TagName" runat="server" Width="213px"></asp:TextBox></td> </tr> <tr> <td>OPC变量地址：</td> <td> <asp:TextBox ID="txt_OPCTag" runat="server"></asp:TextBox><asp:Button ID="btn_OPCTag" runat="server" Text="选择" OnClick="btn_OPCTag_Click" /></td> <td>数据单位：</td> <td><asp:TextBox ID="txt_Tag_UnitName" runat="server" Width="213px"></asp:TextBox></td> </tr> <tr> <td> 备注：</td> <td colspan="3"><asp:TextBox ID="txt_Remark" runat="server" Width="98%"></asp:TextBox></td> </tr> <tr> <td colspan="4"> <div id="doing" style="filter:alpha(opacity=30);-moz-opacity:0.3;opacity:0.3;background-color:#000;width:100%;height:100%;z-index:1000;position: absolute;left:0;top:0;display:none;overflow: hidden;"> </div> <!--加一个登录层--> <div id="divLogin" style="border:solid 10px #898989;background:#fff;padding:10px;width:780px;z-index:1001; position: absolute; display:none;top:50%; left:50%;margin:-200px 0 0 -400px;"> <table width="100%"> <tr> <td><asp:TreeView ID="tv_OPCTag" runat="server" Width="100%" OnSelectedNodeChanged="tv_OPCTag_SelectedNodeChanged"> </asp:TreeView></td> <td style="width: 277px" valign="top"><asp:ListBox ID="lb_OPCTag" runat="server" Width="101%" Height="144px"></asp:ListBox> <asp:Button ID="btn_Add" runat="server" Text="添加" OnClick="btn_Add_Click" /> <asp:Button ID="btn_Close" runat="server" Text="取消" /> <asp:HiddenField ID="state" runat="server" Value="0"/> </td> </tr> </table> </div> <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /> </td> </tr></table></ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="tv_OPCTag" EventName="SelectedNodeChanged" /> </Triggers> </asp:UpdatePanel></asp:Content>