我是网站和网络应用程序的新手。我创建了一个在localhost IIS上正常工作的网站，但是当我把它放在服务器上时它无法正常工作。我必须等待一段时间，直到它开始工作。当我在下拉列表中选择项目时，我也会收到以下错误:(它位于窗口的左下角）
网页错误详情
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET4.0C; .NET4.0E; InfoPath.3; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET CLR 1.1.4322; MS-RTC LM 8)
Timestamp: Tue, 26 Mar 2013 13:07:37 UTC
Message: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed.
Line: 869
Char: 13
Code: 0
我将跟踪设置为true，现在可以正常工作了。但它似乎不是一个好的解决方案，因为我在Dropbox中选择项目时仍然会看到错误。你对此有什么好的建议吗？我应该在配置文件或其他地方添加或删除某些内容吗？以下是我的web.cinfig
<?xml version="1.0"?>
<configuration>
<system.web>
<customErrors mode="Off"/>
<compilation targetFramework="4.0" debug="true"/>
<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"
viewStateEncryptionMode="Always"/>
<trace
enabled="true"/>
</system.web>
</configuration>
答案 0 :(得分：1)
Sys.WebForms.PageRequestManagerParserErrorException - what it is and how to avoid it,
如果您使用过Microsoft ASP.NET AJAX UpdatePanel控件，那么您很可能遇到“Sys.WebForms.PageRequestManagerParserErrorException”错误。
答案 1 :(得分：0)
我实际上不确定是什么引发了这个错误。在我的webform中使用updatepanel。这是我网页的一部分。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"
Inherits="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 id="Head1" runat="server">
<title>DTC</title>
</head>
<body bgcolor="#333333">
<h1 align="center" style="font-family: Arial; color: #FFFF99; height: 40px; font-
weight: bold;
font-size: 50px; min-width: 900px;" title="Header">
DTC Viewer</h1>
<form id="form1" runat="server" style="margin: 50px 100px 50px 100px; min-width: 700px;
background-color: #C0C0C0; font-family: Arial, Helvetica, sans-serif;">
<div align="center" style="width: 100%">
<asp:UpdatePanel ID="CheckboxUpdatePanel" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<table id="MainTable" runat="server" style="margin-left: 100px;">
<tr>
<td>
<asp:UpdatePanel ID="BrandUpdatePanel" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<table>
<tr>
<td style="padding-bottom: 5px;">
<asp:Label ID="BrandLabel" runat="server" Text="Brand :" Font-Names="Arial" Font-Size="Medium"
ForeColor="#333333" CssClass="MyLabel" Width="8em"
style="margin-right: 1em;text-align: right;"></asp:Label>
</td>
<td style="padding-bottom: 5px;">
<asp:TextBox ID="Brand" runat="server" Height="15px" Width="176px" Text="VTC" BackColor="#FFFFCC"
CssClass="MyDropBox" AutoPostBack="True" ForeColor="#666666" ReadOnly="True"></asp:TextBox>
<asp:Label ID="StarLabel1" runat="server" Font-Names="Arial" Font-Size="Medium"
ForeColor="#333333" Width="1em"
style="text-align: left;" Text="*"></asp:Label>
</td>
<td style="padding-bottom: 5px;">
<asp:RequiredFieldValidator ID="BrandValidator" runat="server" ErrorMessage="Basic Search: Brand is required"
ControlToValidate="Brand" InitialValue="" ForeColor="Red" Width="15em" CssClass="ErrorMessage"
Font-Size="Small"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="ModelLabel" runat="server" Text="Model :" Font-Names="Arial" Font-Size="Medium"
ForeColor="#333333" CssClass="MyLabel" Width="8em"
style="margin-right: 1em;text-align: right;"></asp:Label>
</td>
<td>
<asp:TextBox ID="Model" runat="server" Height="15px" Width="176px" Text="FH(4)" BackColor="#FFFFCC"
CssClass="MyDropBox" AutoPostBack="True" ForeColor="#666666" ReadOnly="True"></asp:TextBox>
<asp:Label ID="StarLabel2" runat="server" Font-Names="Arial" Font-Size="Medium"
ForeColor="#333333" Width="1em"
style="text-align: left;" Text="*"></asp:Label>
</td>
<td>
<asp:RequiredFieldValidator ID="ModelValidator" runat="server" ErrorMessage="Basic Search: Model is required"
ControlToValidate="Model" InitialValue="" ForeColor="Red" Width="15em" CssClass="ErrorMessage"
Font-Size="Small"></asp:RequiredFieldValidator>
</td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td>
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<table>
<tr>
<td>
<asp:Label ID="KTXLabel" runat="server" Text=" Emission level :"
Font-Names="Arial" Font-Size="Medium"
ForeColor="#333333" CssClass="MyLabel" Width="8em"
style="margin-right: 1em;text-align: right; margin-left: 0px;"></asp:Label>
</td>
<td>
<asp:DropDownList ID="KTX" runat="server" BackColor="#FFFFCC" ForeColor="#666666"
Height="21px" Style="margin-left: 0px" Width="182px" OnSelectedIndexChanged="KTX_SelectedIndexChanged"
CssClass="MyDropBox" DataTextField="text" DataValueField="value" AutoPostBack="True">
</asp:DropDownList>
<asp:Label ID="Label1" runat="server" Font-Names="Arial" Font-Size="Medium"
ForeColor="#333333" Width="1em"
style="text-align: left;" Text="*"></asp:Label>
</td>
<td>
.........
..........
</ContentTemplate>
</asp:UpdatePanel>
<div style="width: 123px; margin-left: 7px; z-index: inherit;">
<asp:Button ID="getURLButton" runat="server" Height="32px" OnClick="getURLButton_Click"
Text="Submit" Width="134px" BackColor="#DD5800" BorderColor="Gray" Font-Bold="True"
Class="MyButton" Font-Size="Large" ForeColor="#4E4E4E" />
</div>
<br />
</div>
</form>