我有一个在模态窗口中加载的表单，因为我使用了一个更新面板和一个名为 txtAccountInfo 的文本框。我在该文本框上设置了 textchange 事件，第一次更改文本事件被触发，但第二次 textchange 显示此消息。
uncaught exception: [Exception... "'Sys.InvalidOperationException: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'uppMain'. If it is being updated dynamically then it must be inside another UpdatePanel.' when calling method: [nsIDOMEventListener::handleEvent]" nsresult: "0x8057001c (NS_ERROR_XPC_JS_THREW_JS_OBJECT)" location: "JS frame :: chrome://firebug/content/spy.js :: callPageHandler :: line 744" data: no]
我的 ASP.Net 代码
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="mAddOrder.aspx.cs" Inherits="iSBBranch.ModalWindow.mAddOrder" %>
<!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>
<style type="text/css">
</style>
</head>
<body>
<div style="width: 850px;">
<form id="form1" class="form" action="ModalWindow/mAddOrder.aspx" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="uppMain" UpdateMode="Conditional" runat="server">
<ContentTemplate>
<asp:HiddenField ID="txtOrderType" Value="p" runat="server" />
<asp:HiddenField ID="txtOrderStatus" Value="n" runat="server" />
<asp:HiddenField ID="txtOrderRef" runat="server" />
<fieldset id="AccountId" style="width: 783px; position:relative;">
<legend>Account Information</legend>
<p>
<label>
*Account Number </label>
<span class="relative">
<asp:TextBox ID="txtInvestorRef" CssClass="TextBox" runat="server"
OnTextChanged="txtInvestorRef_TextChanged" AutoPostBack="True"></asp:TextBox>
<span class="<%=iSBBranch.ModalWindow.mAddOrder.AccountStatus%>"></span></span>
<div style="position:absolute; right:100px; top:10px;">
<asp:UpdateProgress ID="pbContactAddress" runat="server" AssociatedUpdatePanelID="uppMain"
DisplayAfter="100" DynamicLayout="true">
<ProgressTemplate>
Loading
<img alt="Loading..." src="images/info-loader.gif" />
</ProgressTemplate>
</asp:UpdateProgress>
</div>
</fieldset>
<div class="columns">
<!-- Left column -->
<div class="colx2-left">
<fieldset>
<legend>Post Order</legend>
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Company</label>
<asp:DropDownList CssClass="Combobox" ID="ddlCompany" runat="server" OnSelectedIndexChanged="ddlCompany_SelectedIndexChanged"
AutoPostBack="True">
</asp:DropDownList>
</p>
<br class="clear" />
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Total Quantiy</label>
<asp:TextBox ID="txtTotalQuantity" runat="server" CssClass="NumberField" ReadOnly="true">0</asp:TextBox>
</p>
<br class="clear" />
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Matured Balance</label>
<asp:TextBox ID="txtMaturedBalance" runat="server" CssClass="NumberField" ReadOnly="true">0</asp:TextBox>
</p>
<br class="clear" />
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Share Quantity</label>
<asp:TextBox ID="txtShareQuantity" CssClass="NumberField" runat="server" Text="0"
OnTextChanged="txtShareQuantity_TextChanged" AutoPostBack="True"></asp:TextBox>
</p>
<br class="clear" />
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Rate</label>
<asp:TextBox ID="txtRate" CssClass="NumberField" runat="server" OnTextChanged="txtRate_TextChanged"
AutoPostBack="True">0</asp:TextBox>
</p>
<br class="clear" />
</fieldset>
</div>
<!-- Right column -->
<div class="colx2-left" style="margin-left: 10px;">
<fieldset>
<legend>Company’s Current</legend>
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Market Type</label>
<asp:TextBox ID="TextBox1" ReadOnly="true" CssClass="TextBox" runat="server"></asp:TextBox>
</p>
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Last Trade Price</label>
<asp:TextBox ID="TextBox2" runat="server" CssClass="NumberField" ReadOnly="true"></asp:TextBox>
</p>
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Market Lot</label>
<asp:TextBox ID="TextBox3" runat="server" CssClass="NumberField" ReadOnly="true"></asp:TextBox>
</p>
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Highest Price
</label>
<asp:TextBox ID="TextBox4" runat="server" CssClass="NumberField" Enabled="false"></asp:TextBox>
</p>
<p class="inline-medium-label" style="text-align: right;">
<label for="field1">
Lowest Price</label>
<asp:TextBox ID="TextBox5" Enabled="false" CssClass="NumberField" runat="server"></asp:TextBox>
</p>
</fieldset>
</div>
</div>
<br class="clear" />
<div class="">
<fieldset style="width: 783px;">
<div style="float: right;">
<p class="inline-medium-label" style="text-align: right;">
<label>
Total Trade Amount</label>
<asp:TextBox ID="txtTotalTradeAmount" runat="server" CssClass="NumberField" ReadOnly="true"></asp:TextBox>
</p>
</div>
</fieldset>
</div>
<br class="clear" />
<div style="margin-top: 10px;">
<asp:Button ID="btnSave" CssClass="big-button" runat="server" Text="Save"
onclick="btnSave_Click" />
<asp:Button ID="Button2" OnClientClick="return $.modal.current.closeModal();" CssClass="big-button"
runat="server" Text="Close" />
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSave" EventName="Click" />
<%-- <asp:AsyncPostBackTrigger ControlID="txtInvestorRef" EventName="TextChanged" />--%>
</Triggers>
</asp:UpdatePanel>
</form>
</div>
<script type="text/javascript">
CenterWindow();
</script>
</body>
</html>
如果我关闭它并再次打开它，那么在该 session 中任何时候都不会显示错误。
请指教。
最佳答案
没有看到任何代码，这只是一个猜测，但这个错误通常意味着您试图强制一个 UpdatePanel 从另一个 UpdatePanel 中刷新。您是否要为位于另一个内部的一个触发器设置触发器？这是不可能的。
您还使用了模态窗口。你用什么来渲染这个？是否将模态 div 放在 ASP.NET 表单中？默认情况下，jQuery 和 simpleModal 不会将其附加到 DOM 的末尾。因此，尝试从此类对话框中更新 UpdatePanel 也会给您带来此错误。
请发布一些代码，人们将能够更好地帮助您。
关于c# - 为什么我的 ASP 服务器返回此消息，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/5744472/