aboutsummaryrefslogtreecommitdiffstats
path: root/src/quickcontrols/doc/snippets/qtquickcontrols-combobox-valuerole.qml
blob: 9329b19d1cb5846c894cd6f968a040a71d0f85d9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

import QtQuick
import QtQuick.Controls

//! [file]
ApplicationWindow {
    width: 640
    height: 480
    visible: true

    // Used as an example of a backend - this would usually be
    // e.g. a C++ type exposed to QML.
    QtObject {
        id: backend
        property int modifier
    }

    ComboBox {
        textRole: "text"
        valueRole: "value"
        // When an item is selected, update the backend.
        onActivated: backend.modifier = currentValue
        // Set the initial currentIndex to the value stored in the backend.
        Component.onCompleted: currentIndex = indexOfValue(backend.modifier)
        model: [
            { value: Qt.NoModifier, text: qsTr("No modifier") },
            { value: Qt.ShiftModifier, text: qsTr("Shift") },
            { value: Qt.ControlModifier, text: qsTr("Control") }
        ]
    }
}
//! [file]