items and element id's in for loops unaccessible to states

[tyrsday29]

Hey thanks for the great product! Super easy and enjoyable to use once you get the hang of it. But, I noticed that I can't access any items, or any element by its ID in for loops used by ListView, in states (when I was trying to implement a check all box). Not sure if this goes for all For Loops or just ones included in ListView, didn't go far enough into it, just thought I'd bring it to someone's attention!

For the record I tried using an element ID for ListView and several combinations to no avail.

[hunger]

A work-around could be a global: Put the property you need in there with a reasonable default value of course.

You can then access that globally to communicate from inside an if/for to the outside.

But yes, having a nice way of doing "use foo.bar if there is a foo right now else use some default value" would indeed be nice to have.

[Areopagitics]

I second this as well.

I need to do something like this:

import {Palette, Button, VerticalBox , LineEdit, StandardListView, GroupBox, StandardTableView, ListView, CheckBox} from "std-widgets.slint";

export component AppWindow inherits Window {
    VerticalLayout {
        Button {
            text: "parent";
            clicked => { Child.test(); }
        }
        ListView {
            for i in 50 : Child := HorizontalLayout{
                height: 50px;
                function test() {
                    Child.height = 0px;
                }
                Button {
                    text: "child";
                    clicked => { Child.test(); }
                }
            }
        }
    }
}

[ogoffart]

@Areopagitics In your example, if I press on the "parent" button, then the test function of every children is called? But if I press on the "child" button, only the one for the current child is called.
We could make this work, but that seems unintuitive.

[Areopagitics]

@ogoffart Thank you for looking into this! Yes, that is correct, I am hoping to call all children from the parent.