| 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。 |
| [SqlException (0x80131904): 无法将 NULL 值插入列 'tickcount'，表 'ABC.dbo.bbs_online'；该列不允许空值。INSERT 失败。语句已终止。] System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +862234 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +739110 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188 System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1956 System.Data.SqlClient.SqlDataReader.ConsumeMetaData() +31 System.Data.SqlClient.SqlDataReader.get_MetaData() +62 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +297 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +903 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +132 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32 System.Data.SqlClient.SqlCommand.ExecuteScalar() +137 Discuz.Data.DbHelper.ExecuteScalar(DbConnection connection, CommandType commandType, String commandText, DbParameter[] commandParameters) +108 Discuz.Data.DbHelper.ExecuteScalar(CommandType commandType, String commandText, DbParameter[] commandParameters) +215 Discuz.Data.SqlServer.DataProvider.AddOnlineUser(OnlineUserInfo __onlineuserinfo, Int32 timeout) +1874 Discuz.Forum.OnlineUsers.CreateGuestUser(Int32 timeout) +224 Discuz.Forum.OnlineUsers.UpdateInfo(String passwordkey, Int32 timeout, Int32 uid, String passwd) +445 Discuz.Forum.OnlineUsers.UpdateInfo(String passwordkey, Int32 timeout) +13 Discuz.Web.UI.Pages.BasePage..ctor() +1331 Discuz.ForumPage.forumindex..ctor() +56 ASP.bbs_aspx_1_forumindex_aspx..ctor() +10 __ASP.FastObjectFactory_app_web_szzrtqjv.Create_ASP_bbs_aspx_1_forumindex_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() +120 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 |