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Active-X Controls On Containers?
Message
From
11/03/1998 17:19:39
 
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Miscellaneous
Thread ID:
00083030
Message ID:
00084036
Views:
24
>>>I have a container on which I have a crystal reports Active-X control. My idea was to use this container as a member of my application object so that I can reference reports easily throughout my app (something like goapp.oReport.ReportName = 'blah'). However, when I try to instanciate my container ( x=CreateObject('cntReport') )with the active-x control on it I get the error "object class is invalid for this container." I get this same error for any olecontainer control I drop on my container. Has anyone tried something like this and gotten any results? How can I add an active-x control to my container to be instanciated?
>>
>>
>>Don't know if it will help, but did you call SYS(2333) before attempting to instantiate the ActiveX control?
>
>This is certainly one I wouldn't have thought of. It didn't work, however. I'm starting to think that the problem lies somewhere with VFP and Active-X controls in general. For example, I created a new class based on the OLE Container class, selected the crystal reports activex for the class and saved it as oletest1. When I try to rename the class, to oletest2 for example, I get that same "object class is invalid for this container" error. I can't even rename my class? There must be something I'm missing here.
>
>So far I've found the crystal reports documentation to be poor. What documentation there is available is full of errors and inconsistancies.


You don't need to put the Crystal Control in an OLE Container. Just drop it directly on the form.

I agree with you on the Crystal Documentation. There are a couple of files that ship with Crystal that may help. One is the Developer help file. The other is the TechRef.Pdf, an Adobe Acrobat file.
Craig Berntson
MCSD, Microsoft .Net MVP, Grape City Community Influencer
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