【加急！】未将对象引用设置到对象的实例(网站发布后，源码浏览没有问题)

winther 2011-01-09 10:55:46

未将对象引用设置到对象的实例。
说明: 执行当前 Web 请求期间，出现未处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。

源错误:

执行当前 Web 请求期间生成了未处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。

堆栈跟踪:

[NullReferenceException: 未将对象引用设置到对象的实例。]
CuteEditor.Impl.b..ctor(Type type, String key) +74
CuteEditor.a.i(HtmlTextWriter A_0) +147
CuteEditor.Editor.Render(HtmlTextWriter writer) +46
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +163
System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +32
System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +51
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +40
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
System.Web.UI.Page.Render(HtmlTextWriter writer) +29
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1266

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版本信息: Microsoft .NET Framework 版本:2.0.50727.4927; ASP.NET 版本:2.0.50727.4927

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quifar123 2012-02-29

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把cuteeditor.lic复制到发布好的项目的bin目录下就行了

wsbgy 2011-01-12

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string userName = "";

if(Session["userName"] != null)

   userName = Session["userName"].ToString();

使我做你和平之子 2011-01-12

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string userName = Convert.ToString(Session["userName"]);
这句在session过期/丢失时就会抛异常

Nihn 2011-01-12

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连的是同一个数据库吗？

winther 2011-01-12

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用的是“CuteEditor”在线编辑器，会不会是这个问题呀?用源码运行没有问题，发布后才出现的

winther 2011-01-12

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界面
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="aboutAdd.aspx.cs" Inherits="user_aboutAdd" %>
<%@ Register TagPrefix="CE" Namespace="CuteEditor" Assembly="CuteEditor" %>
<!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>
<link href="../img/mycss.css" rel="stylesheet" type="text/css" />
<style type="text/css">
.style1
{
width: 234px;
}
</style>
</head>
<body bgcolor="#DEDDDD" text="#333333" link="#333333" vlink="#333333" alink="#333333" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<form id="form1" runat="server">
<table width="98%" border="0" align="center" cellpadding="0" cellspacing="0" bgcolor="#3A76AF">
<tr>
<td height="28"> <span class="style12"><font color="#FFFFFF"> → 欢迎您的网站</font></span><font color="#FFFFFF"><span class="style12">后台管理系统</span></font></td>
<td align="left"> <strong><span class="C02"><font color="#FFFFFF"></font></span></strong></td>
</tr>
</table>
<br>
<hr align="center" width="98%" size="1" noshade>
<table width="98%" border="0" align="center" cellpadding="4" cellspacing="1" bgcolor="#3A76AF">
<tr>
<td height="23" colspan="2"><div align="center" class="style3"><font color="#FFFFFF"><strong>部门信息</strong></font></div></td>
</tr>
<tr bgcolor="#FFFFFF">
<td height="25" class="style1"><div align="right">类别：</div></td>
<td width="75%" height="25"></a>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</td>
</tr>
<tr bgcolor="#FFFFFF">
<td height="25" class="style1"><div align="right">内容：</div></td>
<td height="25">
<CE:Editor id="WE_NewsContent" runat="server" AutoConfigure="Simple"
BreakElement="Br" Width="580px" ></CE:Editor></td>
</tr>
<tr bgcolor="#FFFFFF">
<td height="25" class="style1"> </td>
<td height="25">
<asp:Button ID="btnAdd" runat="server" OnClick="btnAdd_Click" Text="· 提交 ·"
Width="70px" />
</td>
</tr>
</table>
</form>
</body>
</html>

winther 2011-01-12

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抱歉这几天断网，这是代码
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

public partial class user_aboutAdd : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string userName = Convert.ToString(Session["userName"]);

if (userName == "")
{
Response.Redirect("index.aspx");
}
if (!IsPostBack)
{
int id = Convert.ToInt32(DB.SQLReplace(Request.QueryString["id"]));
Maticsoft.BLL.gsclass bll = new Maticsoft.BLL.gsclass();
Maticsoft.Model.gsclass model = bll.GetModel(id);

this.Label1.Text = model.classname;

this.WE_NewsContent.Text = model.content;
if (Label1.Text == "企业荣誉")
{
Response.Redirect("Editbout1.aspx");
}
}

}
protected void btnAdd_Click(object sender, EventArgs e)
{
string strErr = "";

if (this.WE_NewsContent.Text == "")
{
strErr += "请输入内容！\\n";
}

if (strErr != "")
{
MessageBox.Show(this, strErr);
return;
}

int id = Convert.ToInt32(DB.SQLReplace(Request.QueryString["id"]));

string content = this.WE_NewsContent.Text;

Maticsoft.Model.gsclass model = new Maticsoft.Model.gsclass();
model.id = id;
model.content = content;

Maticsoft.BLL.gsclass bll = new Maticsoft.BLL.gsclass();
bll.Update(model);
MessageBox.Show(this, "更新成功");
return;
}
}

winther 2011-01-12