aswecn - 2008-6-27 21:20:00
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:
只有在调试模式下进行编译时,生成此未处理异常的源代码才会显示出来。若要启用此功能,请执行以下步骤之一,然后请求 URL:
1. 在产生错误的文件的顶部添加一条“Debug=true”指令。例如:
<%@ Page Language="C#" Debug="true" %>
或:
2. 将以下的节添加到应用程序的配置文件中:
<configuration>
<system.web>
<compilation debug="true"/>
</system.web>
</configuration>
请注意,第二个步骤将使给定应用程序中的所有文件在调试模式下进行编译;第一个步骤仅使该特定文件在调试模式下进行编译。
重要事项: 以调试模式运行应用程序一定会产生内存/性能系统开销。在部署到生产方案之前,应确保应用程序调试已禁用。
堆栈跟踪:
[NullReferenceException: 未将对象引用设置到对象的实例。]
Discuz.Web.website.ShowPage() +692
Discuz.Forum.PageBase..ctor() +2757
Discuz.Web.website..ctor() +197
ASP.aspx_1_website_aspx..ctor() +10
__ASP.FastObjectFactory_app_web_927gdpw_.Create_ASP_aspx_1_website_aspx() +20
System.Web.Compilation.BuildResultCompiledType.CreateInstance() +49
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +115
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +31
System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +40
System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +139
System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +128
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +161
aswecn - 2008-6-27 21:38:00
发表辩论时候报错
[SqlException (0x80131904): 无法将 NULL 值插入列 'tagid',表 'yuanlongfei.yuanlongfei.dnt_tags';该列不允许空值。INSERT 失败。
语句已终止。]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +925466
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +800118
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +186
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1932
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +149
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +1005
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +132
System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) +149
System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +135
Discuz.Data.DbHelper.ExecuteNonQuery(DbConnection connection, CommandType commandType, String commandText, DbParameter[] commandParameters) +108
Discuz.Data.DbHelper.ExecuteNonQuery(CommandType commandType, String commandText, DbParameter[] commandParameters) +215
Discuz.Data.SqlServer.DataProvider.CreateTopicTags(String tags, Int32 topicid, Int32 userid, String curdatetime) +252
Discuz.Web.posttopic.ShowPage() +10803
Discuz.Forum.PageBase..ctor() +2767
Discuz.Web.posttopic..ctor() +131
ASP.aspx_1_posttopic_aspx..ctor() +10
__ASP.FastObjectFactory_app_web_aszjrozh.Create_ASP_aspx_1_posttopic_aspx() +20
System.Web.Compilation.BuildResultCompiledType.CreateInstance() +49
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +115
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +31
System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +40
System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +139
System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +128
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +161
coolpest - 2008-6-28 7:12:00
CREATE TABLE [dnt_tags] (
[tagid] [int] IDENTITY (1, 1) NOT NULL ,
.....
CONSTRAINT [PK_dnt_tags] PRIMARY KEY CLUSTERED
(
[tagid]
) ON [PRIMARY]
) ON [PRIMARY]
GO
请查看一下,dnt_tags表的tagid是否为自增长!
lingluo - 2008-6-28 7:30:00
“/”应用程序中的服务器错误。
--------------------------------------------------------------------------------
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:
只有在调试模式下进行编译时,生成此未处理异常的源代码才会显示出来。若要启用此功能,请执行以下步骤之一,然后请求 URL:
1. 在产生错误的文件的顶部添加一条“Debug=true”指令。例如:
<%@ Page Language="C#" Debug="true" %>
或:
2. 将以下的节添加到应用程序的配置文件中:
<configuration>
<system.web>
<compilation debug="true"/>
</system.web>
</configuration>
请注意,第二个步骤将使给定应用程序中的所有文件在调试模式下进行编译;第一个步骤仅使该特定文件在调试模式下进行编译。
重要事项: 以调试模式运行应用程序一定会产生内存/性能系统开销。在部署到生产方案之前,应确保应用程序调试已禁用。
堆栈跟踪:
[NullReferenceException: 未将对象引用设置到对象的实例。]
Discuz.Web.website.ShowPage() +680
Discuz.Forum.PageBase..ctor() +2756
Discuz.Web.website..ctor() +181
ASP.aspx_1_website_aspx..ctor() +10
__ASP.FastObjectFactory_app_web_qvrk91kp.Create_ASP_aspx_1_website_aspx() +20
System.Web.Compilation.BuildResultCompiledType.CreateInstance() +49
System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +115
System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +31
System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +40
System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +139
System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +128
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +161
--------------------------------------------------------------------------------
版本信息: Microsoft .NET Framework 版本:2.0.50727.1433; ASP.NET 版本:2.0.50727.1433