I think I accidently did something similar recently and I think using
createobject('Empty') may have been a cleaner method of doing what I did.
I was trying to create an object I could use to store say a dozen or more
attributes and then pass the reference to the object as one parameter rather
than a dozen or more separate parameters. This need comes up from time to
time when I want to build a complex method that uses only parameters to do
the same job repeatedly as I fall through a large table. In this specific
situation, I was looping through 50 or 60 columns on about 1,000 records.
Not sure if there is any performance benefit one way or another in using
lots of parameters as compared to using an object references, but it sure
made the development of the two-part processing a lot easier.
The way I did it was to add a custom object to my Class Library and then use
NewObject to create the object within my main code like this:
loTaxObject = NEWOBJECT("Std_VarObj","toolkit")
loTaxObject.AddProperty('ocClientId', '')
loTaxObject.AddProperty('ocEmplId', '')
loTaxObject.AddProperty('ocEmplName', '')
....
etc.
I then fall through a scan...endscan routine where we populate the various
properties on the object and then pass the loTaxObject as a parameter to a
different method which then uses all of the properties to the final
processing. Not sure whether this is good programming style or not, but it
worked like I wanted and I think I'll be using something like this again in
the near future. Then I saw the CreateObject('Empty') command mentioned on
this thread.
Wouldn't that accomplish the same thing I did via NewObject with a
pre-established class?
Thanks!
Paul
-----Original Message-----
From: ProfoxTech [mailto:[email protected]] On Behalf Of Frank
Cazabon
Sent: Tuesday, January 30, 2018 2:13 PM
To: [email protected]
Subject: Re: Declaring variable as "Empty" ???
I've seen it used as a lightweight class.
http://fox.wikis.com/wc.dll?Wiki~EmptyClass
On 30 January 2018 14:50:57 GMT-04:00,
[email protected] wrote:
>Saw this today while looking for other stuff:
>https://www.screencast.com/t/PyvZvy53oZFu
>
>Never saw anyone declare a variable AS "Empty" before? I guess that's
>basically this: loMenuItem = CREATEOBJECT("Empty") (although you'd
>still have to write that code, of course, since no instantiation in
>declaration in VFP).
>
>???
>
[excessive quoting removed by server]
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