distinguishing a table field

Got a LiveCode personal license? Are you a beginner, hobbyist or educator that's new to LiveCode? This forum is the place to go for help getting started. Welcome!

Moderators: Klaus, FourthWorld, heatherlaine, kevinmiller

Post Reply
dunbarx
VIP Livecode Opensource Backer
VIP Livecode Opensource Backer
Posts: 5625
Joined: Wed May 06, 2009 2:28 pm
Location: New York, NY

distinguishing a table field

Post by dunbarx » Tue Sep 04, 2018 8:45 pm

Anyone ever need to determine whether a particular field is a table field?

There is a property in the inspector called "basicTableObject", but this is not in the dictionary, and asking for the value of that property makes LC think it is a custom property (the property is always empty).

Most fields that start out as ordinary fields have properties different from a plain vanilla table field, but those are all changeable, and therefore not reliable.

In other words, why is an explicit settable property in the inspector not in LC at all?

Craig

Klaus
Posts: 10477
Joined: Sat Apr 08, 2006 8:41 am
Location: Germany
Contact:

Re: distinguishing a table field

Post by Klaus » Tue Sep 04, 2018 9:41 pm

Hi Craig,

looks like this checkbox only sets -> the cRevGeneral["table"] of that field to TRUE resp. FALSE, which LC obviously uses to distinguishing a table field. :D

That's why this is no LC property and thus not in the dictionary.


Best

Klaus

dunbarx
VIP Livecode Opensource Backer
VIP Livecode Opensource Backer
Posts: 5625
Joined: Wed May 06, 2009 2:28 pm
Location: New York, NY

Re: distinguishing a table field

Post by dunbarx » Tue Sep 04, 2018 10:01 pm

Klaus.

Ah, thanks.

So the answer to my question is:

Code: Select all

answer the cRevGeneral["table"] of fld 1
This harkens back to a thread I created a while back, where the "CRevGeneral" custom property is sort of invisible until it is used. I will try to find that thread, and see if I can drill into my head when and where is can and should be used, or at least examined.

Craig

Klaus
Posts: 10477
Joined: Sat Apr 08, 2006 8:41 am
Location: Germany
Contact:

Re: distinguishing a table field

Post by Klaus » Tue Sep 04, 2018 10:04 pm

dunbarx wrote:
Tue Sep 04, 2018 10:01 pm
So the answer to my question is:

Code: Select all

answer the cRevGeneral["table"] of fld 1
Yes.
There is a property in the inspector called "basicTableObject", but this is not in the dictionary
To be precise:
That is no property in the inspector, just a simple checkbox.

dunbarx
VIP Livecode Opensource Backer
VIP Livecode Opensource Backer
Posts: 5625
Joined: Wed May 06, 2009 2:28 pm
Location: New York, NY

Re: distinguishing a table field

Post by dunbarx » Tue Sep 04, 2018 10:06 pm

And just to beat a dead horse, I actually viewed both the common name and the LC property name for that non-property. One is: "basicTableObject" and the other is "Basic Table Object".

This made me think it had to be a real LC property, and not just not a property at all.

Craig

Post Reply

Return to “Getting Started with LiveCode - Complete Beginners”