我做了一切。删除代码并从工具箱中拖出新控件，重命名，尝试从javascript - 我只是无法得到这个freakin'modalpopupextender来显示。浪费了3天。
即使是登录按钮，我也试图通过VB代码隐藏来显示它。其他所有内容都在按钮的代码中执行，而不是这一行：
Me.ModalPopupExtender2.Show()
但无论我尝试什么，它都喜欢隐藏。
欢迎任何想法！谢谢，
杰森
PS - 这是aspx编码
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Login.aspx.vb" Inherits="LetterWriterASP.Login" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head id="Head2"><meta http-equiv="Expires" content="-1" /><title>
Anchor General Insurance Agency, Inc.
</title><meta http-equiv="Expires" content="-1" /><link rel="shortcut icon" href="Images/favicon.ico" /><link href="App_Themes/Default/Calendar.css" type="text/css" rel="stylesheet" /><link href="App_Themes/Default/Default.css" type="text/css" rel="stylesheet" />
</head>
<style type="text/css">
.ModalPopupBG
{
background-color: #666699;
filter: alpha(opacity=50);
opacity: 0.7;
}
.HellowWorldPopup
{
min-width:200px;
min-height:100px;
background:white;
border-color:Silver;
border-style:ridge;
border-width:medium;
}
.HeaderStyle
{
color:Black;
background-color:Black;
border-style:solid;
}
.PopupHeader
{
color:Black;
background-color: Black;
}
</style>
<body leftmargin="0" topmargin="0"
background="Images/tile-grey-stripe.jpg">
<form id="Form1" runat="server">
<table width="1000" height="99" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td width="35" background="../Images/a_ag01.jpg"></td>
<td width="524"><img src="Images/a_ag1.jpg" alt="" width="524" height="99" border="0" align="top" /></td>
<td width="389">
<table border="0" cellspacing="0" cellpadding="0" width="389">
<tr>
<td width="218"><img id="imgHeader" src="Images/text_title_producer1.jpg" style="height:99px;width:218px;border-width:0px;" /></td>
<td width="111"><img id="imgHeadr2" src="Images/text_title-TILE.jpg" style="height:99px;width:171px;border-width:0px;" /></td>
</tr>
</table>
</td>
<td width="19" align="right"><img src="Images/a_ag4_end.jpg" width="19" height="99" alt="" /></td>
<td align="right" width="33" background="Images/a_ag5.jpg"></td>
</tr>
</table>
<!--end of the header table -->
<table height="702" width="1000" border="0" cellpadding="0" cellspacing="0" align="center">
<tr>
<td width="50" background="Images/b_ag1_lefttile.jpg"> <!-- This is the left wall of the form !-->
</td>
<td width="900" valign="top" bgcolor="#FFFFFF">
<!-- Text, controls, buttons, etc goes below this comment. !-->
<script type="text/javascript">
function InvalidLogin()
{
alert("Invalid user name or password. Please try again.");
window.location = "../Login.aspx";
}
function ShowModal()
{$find('ModalPopupExtender2').show();}
</script>
<br /><br /><br /><br /><br /><br /><br />
<center><table border="2" cellpadding="4" cellspacing="0"
style="border-collapse:collapse;">
<tr>
<td>
<table border="0" cellpadding="0" style="height:172px;width:278px;">
<tr>
<td align="center" colspan="2"
style="color:White;background-color:#5D7B9D;font-size:0.9em;font-weight:bold;">
Log In</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">User
Name:</asp:Label>
</td>
<td>
<asp:TextBox ID="UserName" Width="150" name="UserName" runat="server" Font-Size="0.8em"></asp:TextBox>
<asp:RequiredFieldValidator ID="UserNameRequired" runat="server"
ControlToValidate="UserName" ErrorMessage="User Name is required."
ToolTip="User Name is required." ValidationGroup="Login1">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="right">
<asp:Label ID="PasswordLabel" runat="server" AssociatedControlID="Password">Password:</asp:Label>
</td>
<td>
<asp:TextBox ID="Password" Width="150" runat="server" Font-Size="0.8em" TextMode="Password"></asp:TextBox>
<asp:RequiredFieldValidator ID="PasswordRequired" runat="server"
ControlToValidate="Password" ErrorMessage="Password is required."
ToolTip="Password is required." ValidationGroup="Login1">*</asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td align="center" colspan="2" style="color:Red;">
<asp:Literal ID="FailureText" runat="server" EnableViewState="False"></asp:Literal>
</td>
</tr>
<tr>
<td align="right" colspan="2">
<asp:Button ID="LoginButton" runat="server" BackColor="#FFFBFF"
BorderColor="#CCCCCC" BorderStyle="Solid" BorderWidth="1px" CommandName="Login"
Font-Names="Verdana" Font-Size="0.8em" ForeColor="#284775"
onclick="LoginButton_Click1" Text="Log In" ValidationGroup="Login1" />
</td>
</tr>
</table>
</td>
</tr>
</table> </center>
<!-- Text, controls, buttons, etc goes above this comment. !-->
<!--"#E6E2D8" "Black"-->
</td>
<td width="50" background="Images/b_ag1_righttile.jpg"> <!-- This is the right wall !-->
</td>
</tr>
</table>
<!--end of content table -->
<table height="75" width="1000" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td width="80" background="Images/c_ag1_leftcorner.jpg"></td>
<td width="840" align="center" valign="top" background="Images/c_ag1_center-piece.jpg" class="contents">
<span id="lblFooter"><center>Copyright © 2006 Anchor General Insurance Agency, Inc. All rights reserved. <br />For questions, please call: (800) 542-6246</center></span>
</td>
<td width="80" background="Images/c_ag1_rightcorner.jpg"></td>
</tr>
</table>
<!-- Popup Form -->
<asp:ToolkitScriptManager ID="ToolkitScriptManager2" runat="server" EnablePageMethods="true">
</asp:ToolkitScriptManager>
<asp:button id="Button3" name="Button3" runat="server" text="Button" style="display: none;" />
<asp:ModalPopupExtender ID="ModalPopupExtender2" runat="server"
targetcontrolid="Button3" popupcontrolid="PopupPanel"
popupdraghandlecontrolid="PopupHeader2" drag="true"
backgroundcssclass="ModalPopupBG">
</asp:ModalPopupExtender>
<asp:Panel ID="PopupPanel" style="display: none" runat="server">
<div class="HellowWorldPopup">
<div class="PopupHeader" id="PopupHeader2"> </div>
<div class="Controls">
<center><table border=0 cellpadding=0 cellspacing=0><tr><td><img src="Images/ajax-loader.gif" /></td><td> Please Wait...</td></tr></table></center>
</div>
</div>
</asp:Panel>
</form>
</body>
</html>
答案 0 :(得分：0)
快来找出（经过长时间的试验和错误），每个人都应该知道一些事情。
您无法复制
<ToolkitScriptManager>
从一个aspx页面到另一个页面的代码。您必须将其从工具箱拖到页面上。我想它会做一些我们看不到或不知道的事情。同样可能适用于ModalPopupExtender。
希望能帮到那里的人！