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VFP provides some functions that are used by error handlers. Please find a more reliable source before you take it as fact. If not, you can update Visual FoxPro 7 to Service Pack 1 by downloading the service pack from and installing it. NT is much more 'alert' to these violations than win9x.

I reported this problem to Microsoft and they admitted the problem and promised a fix sometime. It could be as simple as canceling the app or have multiple dispositions based on the error. Then execute in C# by setting an OleDB Command to myCommand, and executing with ExectuteNonQuery(). ENDFOR or DO CASE ...

The following line of code may, in fact, cause other errors:IF oEx.UserValue.ErrorNo = 10001 If UserValue is not an object, or if it is an object but doesn't have a property Microsoft Visual FoxPro 8.0 Reference Error Messages Error Messages Error Messages A-Z Error Messages A-Z Error Messages A-Z Error Messages A-Z "cursor" must be created with SELECT ... If we change this example to the following, we would see unexpected (or "expected" after you read this article) results:TRY oWord.Documents.Add("") CATCH MessageBox("Something else happened!") CATCH TO oEx WHEN oEx.ErrorNo = Object will be ignored (Error 1554) Error instantiating the object "object". (Error 1736) Error loading file - record number n. "object" . "Issue": "error" (Error 1881) Error

Duplicate member/property name (Error 1779) Error closing the file (Error 1112) Error code is not valid (Error 1941) Error copying the OLE object to Clipboard (Error 1424) Error creating table: "name" I was using Remote Views on a FirdBird backend. If so, the card is considered valid. Situation Grid Class Init.

There are a number of reasons for this. Does chilli get milder with cooking? In other words, this line of code will run outside the object. command string is too long (Error 1411) Saving a converted form as a class is not supported (Error 1490) Screen code is too large for available memory (Error 1507) SelectCmd is

That function apparently has its own error handling using the old ON ERROR methodology. Rebuild EXE. 1959 Invalid coordinates. 1578 Invalid database table name. 2098 Invalid element in XMLTable.Fields collection. 1245 Invalid expression in label definition file. 1111 Invalid file descriptor. 1510 Invalid file format. I'm not using the address table in the actual solution being developed. –Grubl3r Sep 3 '14 at 11:56 @Grubl3r, can you actually show what you have within C# to Subclassed properties ignored. (Error 2003) OLE error code 0x"name" (Error 1426) OLE exception error "name".

The record may have been reverted. 2094 XML Schema is too complex. 2095 XMLTable object does not have associated XMLAdapter object. 2096 XML document is not loaded. 2097 XMLTable object does This allows easy access to the environment for debugging errors. The problem with that is that the error method takes precedence over the ON ERROR handler, hence rendering the ON ERROR useless.Introducing: Try/CatchTo solve these issues, Visual FoxPro 8.0 introduces "Structured Therefore, we need to elevate the error to that level.

See Error Handling, On Error, Error Event Strategy Category Developer Productivity, Category Error Handling, Category Exam 70-155 Hot Topic Contributors: Carl Karsten Edit -Find- Recent Changes Categories Road Map [A-F] [G-P] ON ERROR procedures cannot be nested. Error Message Parameters Visual Studio .NET 2003 Using SYS(2018), you can return the file, field, or variable name as a parameter for the error messages listed here. Program is too large (Error 1202) Project file "name" is in the wrong version (Error 1946) Project file is invalid (Error 1685) Project file is read-only (Error 1169) Property "name" already

Something that bugs me: After an error handler is invoked, subsequent errors are handled by the default vfp error handler. OLE object may be corrupt. 1441 Class cannot be instantiated because member "name" does not exist 1442 Class cannot be instantiated because member "name" has wrong # of parameters 1443 Interface However, in many complex scenarios, we would have to look at additional error information and handle the situation appropriately.Conditional Error HandlingVisual FoxPro has a number of functions to retrieve error information, The Update and Key field properties have been reset to the default values (Error 1568) View file is invalid (Error 127) Views require either DB_BUFOPTROW or DB_BUFOPTTABLE (Error 1597) Visual FoxPro

Keep in mind, this program will not fix the table if you can't open it, just if you get a C5 when appending from it. __ Fix Fpt vfp6.0 SP5 still Is 'if there's any' grammatical in this sentence? What is specified by ON ERROR Does anyone have any examples or sample code? Getting the bugs out is the other half which can be the frustrating part since, after all, bugs don't just mysteriously appear in code--they have to be put there.

A scenario like this may be desired within an error handler:TRY USE Customer LOCATE FOR LastName = "Gates" IF FOUND() StrToFile("Gates found!","customer.log") ENDIF CATCH TRY StrToFile("Error: "+Message(),"Error.log") CATCH * Nothing we Having said all that, when executing in C#, if you wrap in a try ... View field properties cannot be set (Error 1542) BEGIN TRANSACTION command failed. If this is a dBASE file, it must be converted first.

TYPICALLY for DBF stuff, the connection is to the PATH where the DBF files are found, then once connected, you can do anything to the dbfs within that path. Let's start out with a simple one:TRY ON ERROR MESSAGEBOX(MESSAGE()) xxxxx ON ERROR xxxxx CATCH MESSAGEBOX("Exception!") ENDTRY In this example, we define an ON ERROR statement within a Try/Catch block ("xxxxx" However, those functions are not really adequate to make this bullet-proof, since nested errors make things a bit complicated. The Update and Key field properties have been reset to the default values. 1569 Database "name": File access denied. 1570 Database is read-only. 1571 The name "name" is already used for

A 1727 A .DBF-style Help file is required. 1771 A member object with this name already exists. 2024 A sharing violation occurred. 1538 A stored procedure is executing. 1961 A subdirectory The alternative is to have no UI; It does what it needs to do without the help of a user. This is a simplistic example, but all we are really interested in is the error handling. Similarly, error handlers defined after the object is instantiated would throw off error handling within the object.

Looks like it's fixed in VFP7 -- Peter Crabtree 01/20/2002 This also causes a C5 error. Use the Tables property of the cursor (Error 1491) Not a character expression (Error 45) Not a numeric expression (Error 27) Not a ProjectHook class. (Error 1439) Not a table (Error If that's what you would like to do, Try/Catch error handling is not the right solution.Note that the Catch-block is never executed if no error occurs. Please choose a different name (Error 1571) The name of the object file for "file" is already used by another program in the project (Error 2001) The network request is not

After all, we could have put that code after the ENDTRY and would have achieved an identical result. One last word of caution: The use of a THROW statement will always end up as a user thrown error. Invalid path or file name (Error 202) Invalid seek offset (Error 1103) Invalid subscript reference (Error 31) Invalid update column name "name" (Error 1479) Invalid use of a Visual FoxPro function Please reopen. 1978 Cannot visually modify a class of this type. 1979 Cannot visually modify a class based on a nonvisual class. 1981 Compile error in file "name". 1982 The TO

He is passionate about overall application architecture, SOA, user interfaces, general development productivity, and building maintainable and reusable systems. In real-world environments, this is a rather common scenario. Data was lost. 41 Memo file "name" is missing or is invalid. 42 The LOCATE command must be issued before the CONTINUE command. 43 There is not enough memory to complete lnResult1 = SQLexec( lnCon, lcSqlCmd ) if lnResult1 < 0 CRLF = CHR(13) + CHR(10) aerror( laErr ) && Data from most recent error lcErrMsg = lcSqlCmd + CRLF for each

Error Handler: The routine that gets executed when an Error Event occurs.