BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Locate and EOF behavior          BorlandTalk.com Forum Index -> Delphi Databases (Desktop) View previous topic :: View next topic   Author Message MC Ged Guest Posted: Sun Jan 11, 2004 7:28 pm    Post subject: Locate and EOF behavior I have been having a problem with LOCATE. I execute a TQuery on a DBASE file with REQUESTLIVE = true. I loop over the rows until EOF is true. If I now do a LOCATE, the application blows up completely. However, if I open/close and then do a LOCATE, it does not blow up. For what it's worth, if LOCAL By the way, this whole business is happening on a stand-alone PC and it happens in Win 98 and Win 2000. Thank you for any insight you may have. Marie Claire Back to top Ignacio Vazquez Guest Posted: Sun Jan 11, 2004 7:42 pm    Post subject: Re: Locate and EOF behavior MC Ged wrote: Quote: I have been having a problem with LOCATE. I execute a TQuery on a DBASE file with REQUESTLIVE = true. I loop over the rows until EOF is true. If I now do a LOCATE, the application blows up completely. However, if I open/close and then do a LOCATE, it does not blow up. How about if you do a .First? Quote: For what it's worth, if LOCAL .... You were saying? -- Cheers, Ignacio Back to top Bill Todd (TeamB) Guest Posted: Sun Jan 11, 2004 8:13 pm    Post subject: Re: Locate and EOF behavior On Sun, 11 Jan 2004 14:28:34 -0500, "MC Ged" <mcged (AT) compuserve (DOT) com> wrote: Quote: I have been having a problem with LOCATE. I execute a TQuery on a DBASE file with REQUESTLIVE = true. I loop over the rows until EOF is true. If I now do a LOCATE, the application blows up completely. However, if I Define "blows up completely". Is there an error message? If so, what is it? You will find that the quality of the help you get on these newsgroups varies directly with the amount of detailed information you provide. :) Quote: open/close and then do a LOCATE, it does not blow up. How can you do a Locate on a closed dataset? Quote: For what it's worth, if LOCAL The sentence above appears to be incomplete. Is something misssing? -- Bill (TeamB) (TeamB cannot respond to questions received via email) Back to top MC Ged Guest Posted: Sun Jan 11, 2004 8:13 pm    Post subject: Re: Locate and EOF behavior ..First causes the app to blow up as well. "Ignacio Vazquez" <ivazquezATorioncommunications.com> wrote Quote: MC Ged wrote: I have been having a problem with LOCATE. I execute a TQuery on a DBASE file with REQUESTLIVE = true. I loop over the rows until EOF is true. If I now do a LOCATE, the application blows up completely. However, if I open/close and then do a LOCATE, it does not blow up. How about if you do a .First? For what it's worth, if LOCAL ... You were saying? -- Cheers, Ignacio Back to top MC Ged Guest Posted: Sun Jan 11, 2004 8:28 pm    Post subject: Re: Locate and EOF behavior If I run the app from the IDE, I get the following error message: This program has performed an illegal operation and will be shut down. If the problem persists, contact the program vendor. MYAPP caused an invalid page fault in module IDDBAS32.DLL at 017f:4de3b711. Registers: (blah blah ) Outside the IDE, I get: This program has performed an illegal operation and will be shut down. If the problem persists, contact the program vendor. MYAPP caused an invalid page fault in module KERNEL32.DLL at 017f:bff87ee0. Registers: (blah blah ) In either case, the app shuts down. As for the other 2 items you point out, I obviously need something stronger than spell checker. I should have written: 1 - However, if I close/open and then do a LOCATE, it does not blow up. 2 - For what it's worth, if LOCAL SHARE = false, the app does not blow up, but LOCATE doesn't always find what it should. Presumably, that's because it's only looking in whatever is left in the cache. Thanks, Marie Claire "Bill Todd (TeamB)" <no (AT) no (DOT) com> wrote Quote: On Sun, 11 Jan 2004 14:28:34 -0500, "MC Ged" wrote: I have been having a problem with LOCATE. I execute a TQuery on a DBASE file with REQUESTLIVE = true. I loop over the rows until EOF is true. If I now do a LOCATE, the application blows up completely. However, if I Define "blows up completely". Is there an error message? If so, what is it? You will find that the quality of the help you get on these newsgroups varies directly with the amount of detailed information you provide. :) open/close and then do a LOCATE, it does not blow up. How can you do a Locate on a closed dataset? For what it's worth, if LOCAL The sentence above appears to be incomplete. Is something misssing? -- Bill (TeamB) (TeamB cannot respond to questions received via email) Back to top Bill Todd (TeamB) Guest Posted: Sun Jan 11, 2004 10:11 pm    Post subject: Re: Locate and EOF behavior You will have to use one of the work arounds that you have found. Since the BDE is no longer being developed the problem will never be fixed. If you are not using the latest version of the BDE (5.2) you could try that and see if the behavior is any different. -- Bill (TeamB) (TeamB cannot respond to questions received via email) Back to top MC Ged Guest Posted: Mon Jan 12, 2004 2:36 pm    Post subject: Re: Locate and EOF behavior Unfortunately I am using BDE 5.2. What a bummer... Thanks, Marie Claire "Bill Todd (TeamB)" <no (AT) no (DOT) com> wrote Quote: You will have to use one of the work arounds that you have found. Since the BDE is no longer being developed the problem will never be fixed. If you are not using the latest version of the BDE (5.2) you could try that and see if the behavior is any different. -- Bill (TeamB) (TeamB cannot respond to questions received via email) Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi Databases (Desktop) All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.