determine the change of _vfp.forms.count immediately ?

[Inas]

How to determine the change of _vfp.forms.count immediately, beside using timer to monitor it ?

I try line below :

public oVFP
oVFP = _vfp.forms

before i open any form, in the debugger i saw

oVFP.forms.cnt = 0
_vfp.forms.cnt = 0

When i open a new form :

oVFP.forms.cnt = 1
_vfp.forms.cnt = 1

I expect i create a assign method for oVFP, when the value of the oVFP.forms.cnt change it will run the code in the assign method, but it does not work. can anybody help ?

 

[ChrisRChamberlain]

GJen

Check out the _SCREEN.FormCount property.

FAQ184-2483 - answering getting answered.​

Chris
PDFcommander^tm.com
PDFcommander^tm.co.uk

 

[Inas]

Thanks for help.

Is there any different between _SCREEN.FormCount and _vfp.forms.count. From the VFP help it seen like same.

My main concern is to determine the change of the FormCount in VFP. I'm writing a class that to handle multi language. But current it need to change the baseform class in the init method to call a fucntion to change all the label's captions during the form being call. So i plan to enchance the class to able to handle this but it self. It mean that the label convert function is being call when a form is open.

 

[Mike Lewis]

Ggjem,

Have you thought of using BINDEVENT()? That lets you bind a method to a property. As far as I can see, that would include a property of _VFP. I haven't tried it, but in theory it should work. (You need VFP 8.0 or above for this).

Mike


Mike Lewis
Edinburgh, Scotland

My Visual Foxpro web site:

http://www.ml-consult.demon.co.uk

My Crystal Reports web site:

http://www.ml-crystal.com

 

[Inas]

Thanks. Will try it now.

 

[Inas]

I have just try the bindevent. But it work with only when when change the property value either by programmatic or intrative. And it couldn't work with _screen.formcount.

I try line below when the object is being init.

BINDEVENT(_SCREEN,"FORMCOUNT",THIS,"TEST")

in the TEST method i write:

WAIT WIND "TESTING"

By the time i open a new form. the _screen.formcount had change from 0 to 1 automatically. But the wait windows "TESTING" does not come out.

However when i bind the test to "TAG" property in a form. and then i change the "tag" to 1 the "test" event fired

Anyone can give some idea?

 

[rgbean]

I think you may be approaching this the wrong way. Why not have your form class "announce" (notify) that it's being opened to whatever needs to know?

Rick

 

[Inas]

Rick, thanks for advice. I know that the way i do it is little bit strange..I just want to try to make minimum or even no changes to current existing base form class. If that is now way do determine the _screen.formcount or _vfp.forms.count than i have to do as what you say. Thanks lot.