Use the size of a model in QML

Question

I am looking for a way to access the number of elements that are to be found in a model in QML.

For example:

Item {
    id: root
    Row {
        id: row
        height: root.height
        width: root.width
        spacing: 5
        Repeater {
            id: rep
            width: root.width
            height: root.height
            model: [5, 3, 3, 1, 12]
            delegate: myDelegate
            Text {
                id: myDelegate
                text: "Element " + index + " of " size + ":" + modelData
        }
    }
}

But I can't figure out how to retrieve the size of the model. In the documentation I can find a property called count, but no hint how to access it.

score 16 · Accepted Answer · answered Aug 02 '16 at 09:06

16

It depends on the model you're using. In your case, the model is a plain old JavaScript array, so you'd use model.length. Every other Qt type related to models or views has a count property: ListModel, Repeater, ListView, etc. So, you could also use rep.count, in your case.

answered Aug 02 '16 at 09:06

Mitch

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Thank you! rep.count works like a charm. I will try the other at once! – derM - not here for BOT dreams Aug 02 '16 at 09:10

score 1 · Answer 2 · answered Apr 20 '21 at 08:27

1

Generic way is to request repeater for it's underlying model count - in your case it would be rep.count.

answered Apr 20 '21 at 08:27

Mariusz Jaskółka

4,137
2
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Use the size of a model in QML

2 Answers2