Article: Q128078
Product(s): Microsoft FoxPro
Version(s): WINDOWS:3.0
Operating System(s):
Keyword(s): kbcode
Last Modified: 12-FEB-2000
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The information in this article applies to:
- Microsoft Visual FoxPro for Windows, version 3.0
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SUMMARY
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If a Database Container (.DBC file) becomes corrupted or damaged, it may
generate error number 1552: File "<filename>" is not a database. This
article shows by example how to trap for this error by using an ON ERROR
routine.
MORE INFORMATION
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To demonstrate, perform the following steps:
1. Create a new database and call it DATA1.DBC
2. In the Database Designer, right-click and choose New Table. Create a new
table with the following fields:
Field Type Width
-----------------------
Test1 character 10
Test2 character 10
When prompted to Input Data Records Now, choose Yes and add data to the table.
3. Issue the following commands in the Command Window:
CLOSE ALL
USE c:\vfp\data1.dbc &&actual path to your .DBC file may be different
BROWSE
CAUTION: If you are using an existing file instead of the example file created
here, please back it up before proceeding to the next step.
1. Change the PARENTID in the first record to 0, then Save and Close the table.
2. Type the following into a program and run it:
ON ERROR DO errhand && To trap, and send to the error
&& handler procedure
OPEN DATABASE SYS(2004)+'data1.dbc' && An existing corrupt DBC file
ON ERROR && To reset ON ERROR to default
PROCEDURE errhand && The error handler
IF ERROR()=1552 && Check which error occurred
WAIT WINDOW 'Error #: '+STR(ERROR())+' Message: '+MESSAGE()
ENDIF
The error message "Error #1552 Message:File C:\VFP\DATA1.DBC is not a database."
should be displayed in a Wait window.
Additional query words: trap error VFoxWin
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Keywords : kbcode
Technology : kbVFPsearch kbAudDeveloper kbVFP300
Version : WINDOWS:3.0
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