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Getting object reference via indirection?
Message
 
 
To
27/07/2016 11:31:35
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Environment versions
Visual FoxPro:
VFP 9 SP2
OS:
Windows 8.1
Network:
Windows Server 2012
Database:
Visual FoxPro
Application:
Desktop
Virtual environment:
VMWare
Miscellaneous
Thread ID:
01638766
Message ID:
01638767
Views:
64
>Hi all,
>
>I wanted to write some generic code that would continue to work even if I added objects to a screen at runtime.
>
>Is there another way to get an object reference to a screen object when part of the name is in a var?
>
>I know I can use PEMSTATUS() to test if the object exists. Say that below was in a loop to test for a dozen objects
>
>lnLoop = 5
>
>lcObjectName = "label" + LTRIM(STR(lnLoop))
>
>IF PEMSTATUS(THISFORM,lcObjectName,5)
>
> loLabel = THISFORM.&lcObjectName
>
>ENDIF
>
>Is there any other way to get a reference to the object other than macro expansion? I think I figured this out once but dang if I can find it.
>
>Thanks,
>Albert

loLabel = evaluate('thisform.' + lcObjectName)

Looks also at GetPem() function. I think it can be used too, but I am not too familiar with that.
If it's not broken, fix it until it is.


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