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Each time through the loop, call CDaoException::GetErrorInfo to refill the m_pErrorInfo data member.See AlsoException Handling in MFC Show: Inherited Protected Print Export (0) Print Export (0) Share IN THIS ARTICLE Is Then the except code will take over.Let us look at a simple example where we intentionally divide a number by zero :var
number1, number0 : Integer;
number0 := 0;
number1 := 1;
number1 := number1 But your code may have created objects or allocated memory that is now no longer referenced. The EDatabaseError class also has other properties that provide more runtime information.

How do you determine what type of EDatabaseError? 2. EDatabaseError Exception 9. The Lazarus environment runs the debugger by default so it catches the exception first. Thanks, You're in!

For example: try Query1.Open; except on E: Exception do begin MessageDLG( 'Type: ' + E.ClassName + #10 + Best regards, Vincent Shaw [email protected] Craig Stunt Delphi Developer Wed, 18 Jun 1902 08:00:00 GMT Re:How can I determine an EDatabaseError exception ErrorCode? Inexperienced user might, for example, try to open a nonexisting file or input a bad value into a data field.Users make mistakes and we should be prepared to handle/prevent these errors I would click on Break in the pop-up message and the program would pause.

To debug it I need to know what the SQL error is, but have found no method to view the errorcode or error-message from the BDE engine. Or we can do different things depending on the error. How to disable transliterate?2How to handle ADO fatal network errors without interrupting threads' execution?1Error handling when executing SQL script with multiple INSERT, UPDATE,… statements using ADO in Delphi0ADO Recordset.Open does not Delphi Getting Started with Delphi Delphi Programming - Inside and Out Build Database Applications with Delphi Free Delphi Source Code: Projects, Controls, Components Understanding, Using and Enhancing Delphi VCL Components Using

However, it does not trap the error - the next highest exception handling (try) block that we are nested in is located and executed.Once you are done debugging the software it In next procedure, dmGeneral - datamodual dbRoad - TDatabase tDept - TTable with CachedUpdate property procedure TfrmDeptEdit.btnOKClick(Sender: TObject); begin with dmGeneral do try Handling EdatabaseError exception 5. Here are the most common exception types :Exception Base class
EAbortAbort without dialog
EAbstractErrorAbstract method error
AssertionFailed Assert call failed
EBitsErrorBoolean array error
ECommonCalendarErrorCalendar calc error
EDateTimeErrorDateTime calc error
EMonthCalErrorMonth calc error
EConversionErrorRaised by Convert
EConvertError Object convert error
EDatabaseErrorDatabase error

You must then click OK on the error dialogue, then hit F9 or the green arrow to continue to your except clause. They only come with the error messages. I suspect what you really want is the string representation of the value, e.g.: PChar(IntToStr((E as EDBEngineError).Errors[0].ErrorCode)) HTH, -Craig -- Craig If the exception turns out to be something other than an EDatabaseError, you may be in luck.

I would click on Break in the pop-up message and the program would pause. I have been running Delphi 1 and Delphi 3 together for approx 4 years. 0 LVL 7 Overall: Level 7 Delphi 7 Message Accepted Solution by:Cynna2002-07-09 Kapusta, Error $2108 means: Is there a property in the application or the control that states I will handle all exceptions? It allows us to free up allocated memory, or other such activities.

This is guaranteed to be activated above. You’ll be auto redirected in 1 second. The return codes — both framework-defined and ODBC-defined — that the database classes can return are documented under the m_nRetCode data member of class CDBException. Here, we use the On function to act on the exception type.The On clause checks against one of a number of Exception classes.

Material specific to one or the other model is explicitly marked. On Thu, 06 Jan 2000 09:07:11 -0500, Craig Stuntz Quote wrote: >Vincent Shaw wrote: >> How can I determine an EDatabaseError exception ErrorCode? >> I use D3, there's no "ErrorCode" property You can avoid this by changing the debug options.And finally ...Suppose that instead of trapping the error where it occurs, you may want to let a higher level exception handler in If you have made the leap to Microsoft’s cloud platform, you know that you will need to create a corporate email signature for your Office 365… Office 365 Exclaimer Setup SMTP

Did you mean ? You could examine the exception object itself, called e, but in this case it is enough to know that the attempt to create a recordset has failed. See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> Login ProductsSalesSupportDownloadsAbout Error The request made to the web Join our community for more solutions or to ask questions.

Dev centers Windows Office Visual Studio Microsoft Azure More... When I run the compiled binary outside of Lazarus it behaves as expected.Thanks for the help.That is the correct way that debuger works in Lazarus, and as i remenber in the See Also TDataSet DatabaseError Retrieved from "http://docwiki.embarcadero.com/Libraries/Berlin/e/index.php?title=Data.DB.EDatabaseError&oldid=164855" Category: API Documentation Views Page Discussion View source History Personal tools Create account Log in Search RAD Studio Berlin Topics Libraries Reference Code In this case, the syntax uses finally keyword and looks like: {some code to allocate resources} try    {guarded block of code} finally    {termination blok - code to free resources}

If that attempt throws an exception, you can examine a data member of the exception object for error information. AboutBox:=TAboutBox.Create(nil) ; try    AboutBox.ShowModal; finally    AboutBox.Release; end; ... Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! Anyone ? :pedro Wed, 18 Jun 1902 08:00:00 GMT Steve Koters#2 / 2 D4: Identifying EDatabaseError Exceptions Quote: >try Query1.Open > except on EDatabaseError do begin >