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Details

Type: Bug
Resolution: Done
Priority: P2: Important
Fix Version/s: 5.14.0 RC1
Affects Version/s: 5.13.1, 5.14.0 Beta 1
Component/s: Quick: Controls 2
Labels:
None

Platform/s:

Windows
Commits:
b4c54935fb2896444f244bfee3c53f8ff18306da (qt/qtquickcontrols2/5.13)

Description

I want to use SplitView to provide a resizable column header for a custom TableView. Since those columns may change dynamically, statically defining those Items does not seem to be an option.

A Repeater would be the expected way to dynamically generate children Items, based on some data model. Unfortunately, the Repeater's delegates are never instantiated, also the Repeater itself isn't listed as a child of the SplitView.

I created this an example .qml to demonstrate the problem.

Expected behaviour: More than one child of SplitView is listed on the console, and multiple colored Rectangles are created visually.

Actual behaviour: Only the statically defined Rectangle is attached and drawn.

import QtQuick 2.12
import QtQuick.Window 2.12
import QtQuick.Controls 2.13

Window {
    visible: true
    width: 640
    height: 480

    SplitView {
        id: header

        anchors.fill: parent

        property variant colors: ["red", "green", "blue"]

        Rectangle {
            color: "pink"
            SplitView.preferredHeight: 20
            SplitView.preferredWidth: 100
        }

        Repeater {
            model: header.colors.length

            delegate: Rectangle {
                color: header.colors[index]
                SplitView.preferredHeight: 20
                SplitView.preferredWidth: 100
                Component.onCompleted: console.log("Repeater delegate instantiated")
            }
        }

        Component.onCompleted: {
            for (var child in header.contentChildren) {
                console.log(child, header.contentChildren[child])
            }
        }
    }
}

QTBUG-51235 seems related, but i decided to open this issue anyway, because it refers to Quick Controls 1 and will probably not be looked at in the near future.