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Class Definition is not found
Message
De
07/01/2012 13:50:47
 
 
À
07/01/2012 13:30:21
Information générale
Forum:
Visual FoxPro
Catégorie:
Classes - VCX
Versions des environnements
Visual FoxPro:
VFP 8 SP1
Divers
Thread ID:
01532347
Message ID:
01532391
Vues:
42
>>I have a Class Library common_libs.vcx
>>
>>Looking at it in the Class Browser there is a class cntPartno
>>
>>within cntPartno are several subclasses (cntAvl, cntExcess, cntMRB, etc.)
>>
>>I want to create a new subclass cntDMR which will be a duplicate of cntMRB.
>>
>>I Created a new ClassLib (clsTemp.vcx)
>>
>>I opened two instances of the class browser. In the first one I opened common_libs. In the second I opened clsTemp.
>>
>>In the first class browser I clicked on cntMRB. I then CTRL-Clicked on the icon just to the left of the drop-down at the top of the screen and dragged it into the second class browser. I now have cntMRB showing in both class browsers.
>>
>>I renamed the class in the second browser and CTRL-Click dragged it back to the first. The renamed class shows up in the first browser where I expect (underneath cntPartno)
>>
>>I then modified cntMRB by putting a MESSAGEBOX statement so that I could tell I was working with the correct library.
>>
>>Everything works fine in my test environment within VFP.
>>
>>However, when I compile the APP file and install it into my production environment I get a "Class Definition cntDMR is not found" message. Invoking cntMRB shows the new MESSAGEBOX.
>>
>>Have I done anything wrong in the way I created this new class?
>
>
>I would do this as follows:
>Click on File ->New (in the VFP menu)
>Select the option Class en click on button New file
>You will be selected with a window “New Class”
>In first textbox you give cntDMR for Class Name
>Your click on the … button in the “Based on” line.
>This will open a getfile() prompt which will be restricted to Class Library.
>Now find and locate your class library common_libs.vcx when you have selected that, there will be listed, in the right panel. a list of all the classes in this selected library. Select in this case the class cntMRB
>Click on open button in the getfile prompt and you will be returned to the window “New Class”
>Now you can either store your cntDMR class in the common_libs.vcx or select an other or new class by clicking on the … button in the Store in line.
>When done you can start making additional modifications to your just newly created cmdDMR class. Open the library etc . etc.
>
>Regards,
>Koen
>>


Thanks for the response.

1. Does this make it a copy or a sub-class of cntMRB? If a sub-class I will try this using cntPartno for the "Based On."

2. I think I tried an equivalent of this from the command window
CREATE CLASS cntDMR OF common_libs AS cntPartno FROM common_libs
and wound up with the same error.

Thanks again. I'll post the results on Monday

......Rich











>>Any suggestions on how to fix this will be greatly appreciated.
>>
>>Thanks to all.........Rich
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