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CLEAR ALL within an event or method
Message
De
12/01/2013 16:12:28
 
 
À
11/01/2013 09:27:01
Information générale
Forum:
Visual FoxPro
Catégorie:
Gestionnaire d'écran & Écrans
Versions des environnements
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Database:
Visual FoxPro
Divers
Thread ID:
01562079
Message ID:
01562326
Vues:
125
>>The helptext of the CLEAR command says:
>>
>>Issuing CLEAR ALL within an event or method for an active control or object generates a Visual FoxPro error message.
>>
>>This bothers me in this situation:
>>1 In the Init() of an object an error occurs.
>>2 The errorhandler offers the option to Abort.
>>3 The Abort has separate code for the runtime situation and the development situation.
>>4 In the development situation I have a line CLEAR ALL.
>>
>>It generates an error without a number: ''Cannot clear the object CMDBROWSE because it is in use."
>>
>>I have unsuccesfully tried several techniques to release the form that contains the object beforehand, for example:
>>
for each loForm in _screen.forms
>>	if lower( m.loForm.class ) = "viafrm_viajob"
>>		m.loForm.destroy()
>>		m.loForm.release()
>>	endif
>>next
>>release loForm
>>
>>Advice is welcome.
>
>I tend to keep a little utility program handy to run after an app I'm testing crashes. That's where I put CLEAR ALL (and other stuff).

I think what you're suggesting here is that I run the prg 'by hand' from the command window after the app finishes?

I have tested it and it indeed does not generate the error. I have also tested the use of KEYBOARD, and it works.

The old code:
lcMacro = 'do c'     && do c contains CLEAR ALL and some other stuff
&lcMacro
CANCEL
The new code:
clear typeahead
keyboard '{CTRL+F2}do c{ENTER}'

CANCEL
Groet,
Peter de Valença

Constructive frustration is the breeding ground of genius.
If there’s no willingness to moderate for the sake of good debate, then I have no willingness to debate at all.
Let's develop superb standards that will end the holy wars.
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