Reference Combo Box

[JackieBlue1970]

I've set up a combobox with a simple Y/N choice. How do you reference which choice was chosen? I've tried several ways based on the limited available references in the googles, the LiveCode dictionary, and the forums. I've tried to reference it directly like:

ex 1:

Code: Select all

 if the label of "cboFreight" is empty 

ex 2:

Code: Select all

put the label of "cboFreight" into tValue
   answer tValue

None of this works. Doesn't error on "compile" but on execution. I've tried other variations (with and without label references) but haven't been able to get a reference to check or even using "answer"

Thanks.

[FourthWorld]

The combobox is a subclass of button - add the object type to the reference and you should be good:

Code: Select all

 if the label of button "cboFreight" is empty

[JackieBlue1970]

The combobox is a subclass of button - add the object type to the reference and you should be good:

Code: Select all

 if the label of button "cboFreight" is empty

Thanks. I’ll give it a try. A combo as a button. Not exactly logical.

[FourthWorld]

Think of it as a selector. The LC button class includes both push buttons (standard, rectangle) and selector buttons (checkbox, radio, option, combo, other menu types).

No matter what type, you'll want to reference objects by some type specifier (button, field, etc, or the generic control) along with the unique element (name, ID, ordinal). The name alone doesn't give it enough information to know what you're referring to.

[dunbarx]

What Richard said.

You wrote:

Code: Select all

 if the label of "cboFreight" is empty 

Consider that you are asking for the label of a quoted string. What is the label of "cboFreight", that is, the simple string of letters "cboFreight". Strings do not have properties.

See?

Craig

[bogs]

Thanks. I’ll give it a try. A combo as a button. Not exactly logical.

If you ever wonder what an object's base is, you can always do something like this to find out...

A rose by any other name...

... or just look at the titlebar of the property inspector...

A quick inspection of your property...

aPic_namesAndSuch2.png (12.71 KiB) Viewed 3993 times

...and all mystery should be resolved

[JackieBlue1970]

If you ever wonder what an object's base is, you can always do something like this to find out...
aPic_namesAndSuch.png
... or just look at the titlebar of the property inspector...
aPic_namesAndSuch2.png
...and all mystery should be resolved

Nice trick. Still seems strange to me.

[Klaus]

Get used to it!

And we also only have ONE field object, but setting some props, what the TOOL palette gratefully does for us, we get a:
label
Listfield
Scrolling listfield
"simple" (text entry) field
ONE Line text entry field

Dito for the scrollbars, we only have ON scrollbar object and can make it a:
slider
progress bar
"simple" scrollbar
"little arrows", no idea if this has a special name?

And all of them are addressed just with:
-> field "name or number of field"
-> scrollbar "name or number of scrollbar"