topic Question on ComboBox in Discussions

Question on ComboBox

miguello — Fri, 09 Jun 2023 18:14:42 GMT

I can create options for Combo Box with pop up tips using something like that (found this experimentally):

Names Default To Here( 1 );
list = {"One" ("This is One"), "Two" ("This is two")};
New Window( "Example",
	cb = Combo Box(
		list, 
		selection = cb << GetSelected();
		Print( selection );
	)
);

But then when I look at the selection - it only has "One" or "Two" as a result of << Get Selected.

Two questions:

1. What kind of data structure is the list above? It's a list of what? list[1] gives me exactly "One"("This is one") - is it a string, or what is it?

2. How do I work with this list, let's say if it was a normal list like {"One", "Two"}, I would put in a script part something like this:

if(
selection == list[1], doThis,
selection==list[2], doThat
);

But how do I do it when I have pop up tips included?

Re: Question on ComboBox

txnelson — Tue, 29 Mar 2022 00:27:26 GMT

In your example, List is a list that has 2 entries.

"One" ("This is One")
"Two" ("This is two")

The Combo box divides each list entry into Item and tipstr.

selection = cb << GetSelected();

returns only the item

If you want the tipstr returned, you need to use

tipstr = (cb << get items)[cb << Get];

Re: Question on ComboBox

miguello — Tue, 29 Mar 2022 03:09:28 GMT

Thanks, Jim.

Still not very clear - each entry is a string? Where quotes escaped?

And if I want to use the same list in an if statement in a script for the combobox, I would have to extract the item itself? Like:

if(
selection == Word(1, list[1], "\!"()"), doThis,
selection==Word(1, list[2], "\!"()"), doThat
);

Re: Question on ComboBox

txnelson — Tue, 29 Mar 2022 04:16:04 GMT

There may be a Community member that has a better way of dealing with the Combo Box list structure, but the only way that I figured out how to deal with it is by making the whole list into a string, and then parsing it out with the Word Function

Names Default To Here( 1 );
list = {"One" ("This is One"), "Two" ("This is two")};
tipstr1 = word(4,char(list),"\!"");

which returns

"This is One"

Re: Question on ComboBox

pmroz — Tue, 29 Mar 2022 13:04:43 GMT

The scripting index shows that structure for tip strings in the combo box. I never realized you could include tooltips with a combobox - neat feature.

You can create the "real" list from the list with tooltips. Also I'd refrain from using "list" as a variable, as it is a function in JSL.

Names Default To Here( 1 );
list_tips = {"One" ("This is One"), "Two" ("This is two")};
New Window( "Example",
	cb = Combo Box(
		list_tips, 
		selection = cb << GetSelected();
		Print( selection );
	)
);

mylist = {};
for (i = 1, i <= nitems(list_tips), i++,
	pq = contains(list_tips[i], "(\!"");
	mylist[i] = substr(list_tips[i], 1, pq - 1);
);

if (
	selection == mylist[1], doThis,
	selection == mylist[2], doThat
);