More complex usecase of the Gtk.ListView

[bacmanni]

I hope this is not totally stupid question.

I am totally new to GTK and ADW. There are couple of examples on how to use lists in examples section. One uses custom object, but it is using SignalListItemFactory and they use . I would like to use BuilderListItemFactory as I am using separate template for list items. i have template for the list like below:

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <template class="GtkListItem">
    <property name="child">
          <object class="GtkLabel" id="test_value">
                <lookup name="test">
                  <lookup name="item">GtkListItem</lookup>
              </lookup>
          </object>
    </property>
  </template>
</interface>

This is working, and if I replace the lookup element with actual text, it works. I have tried both: Test and test.
Then I have the whole list using this kind of object

[Subclass<GObject.Object>]
public partial class DataObject
{
    public string Test  { get; set; }

  public DataObject(string test) : this()
  {
    Test = test;
  }
}

I can see multiple items added to the list and the are visible, but without data. When list is populating data I can see errors "test" not being as a property of DataObject. So my question is: Is this actual error, or am I doing something wrong. Or is my understanding on GObject still lacking and I need to do more than what I have done. In any case, help would be appreciated. :)

Edit: Sorry about the formatting

[badcel]

Did you see: https://github.com/gircore/gir.core/blob/main/src/Samples/Gtk-4.0/ListView/TemplateListViewWindow.cs ?

You probably want to combine it with: https://github.com/gircore/gir.core/blob/main/src/Samples/Gtk-4.0/GridView/CustomObjectGridViewWindow.cs

I can't help you more than this as I don't have much GTK experience myself. I would need to read through the GTK docs too. Please see: https://docs.gtk.org/gtk4/section-list-widget.html

[bacmanni]

Yeah, those are the examples I was talking about. My guess is that I need to bind those properties somehow in DataObject? CustomObjectGridViewWindow.cs is basically the same case as I, but it is missing template and binding is done in the code.

[badcel]

If you know how it would be done in C I can tell you if it is possible in C#.

[bacmanni]

I don't know how to do it in C. However, I changed my code to be more like in the Listview example. Instead of using BuilderListItemFactory and passing template to it, I used SignalListItemFactory (as in example) and read the template in setup. Not sure if it is the right/good way, but it did work. I already got my app leaking memory like crazy at one point, but it is getting there. Thanks for trying to help :)

[badcel]

As GTK is developed in C you can get help for C in the official forum: https://discourse.gnome.org/c/platform/5

You could ask which classes to use and somebody would probably tell you.

[bacmanni]

Closing this as it is no longer relevant on my case