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Article ID: 299799 - Last Review: October 15, 2002 - Revision: 1.0
FIX: Creating A Class with the Same Name as a Base Class Causes Error
This article was previously published under Q299799
If you create a class by using the DEFINE CLASS command that has the same name as one of the Visual FoxPro (VFP) base classes, you receive the following error message when the class is instantiated:
OLE error code 0x80020006: Unknown name.
Custom classes cannot have the same name as base classes. If you try to compile the project into a dynamic-link library (DLL), you receive the following error message:
This problem was corrected in Visual FoxPro version 7.0 for Windows.
Steps to Reproduce Problem
Save the following code as a program, and then run the program:
*!* Q299799 FIX: Creating A Class With The Same Name As A Base Class Causes Error
LOCAL lcVar
CREATE PROJECT oleclasstest NOWAIT
lcVar = "DEFINE CLASS Column AS CUSTOM OLEPUBLIC" + CHR(13) + CHR(10) + ;
" Test = ''" + CHR(13) + CHR(10) + "ENDDEFINE"
=STRTOFILE(lcVar, 'Test.prg', .F.)
_VFP.ACTIVEPROJECT.FILES.ADD('Test.prg')
_VFP.ACTIVEPROJECT.BUILD('test.dll', 4)
oObject = CREATEOBJECT('test.Column')
CLEAR
? oObject.Test
? oObject.BASECLASS
APPLIES TO
- Microsoft Visual FoxPro 6.0 Professional Edition
| kbbug kbcodesnippet kbfix kboop kbvfp700fix KB299799 |
Retired KB Content DisclaimerThis article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
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