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Diffstat (limited to 'src/quick/doc/snippets/qml/qml-data-models/listmodel-listview-required.qml')
-rw-r--r-- | src/quick/doc/snippets/qml/qml-data-models/listmodel-listview-required.qml | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/quick/doc/snippets/qml/qml-data-models/listmodel-listview-required.qml b/src/quick/doc/snippets/qml/qml-data-models/listmodel-listview-required.qml new file mode 100644 index 0000000000..e9a668ed8f --- /dev/null +++ b/src/quick/doc/snippets/qml/qml-data-models/listmodel-listview-required.qml @@ -0,0 +1,81 @@ +/**************************************************************************** +** +** Copyright (C) 2020 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +//! [document] +import QtQuick 2.0 + +Item { + width: 200 + height: 250 + + ListModel { + id: myModel + ListElement { type: "Dog"; age: 8; noise: "meow" } + ListElement { type: "Cat"; age: 5; noise: "woof" } + } + + component MyDelegate : Text { + required property string type + required property int age + text: type + ", " + age + // WRONG: Component.onCompleted: () => console.log(noise) + // The above line would cause a ReferenceError + // as there is no required property noise, + // and the presence of the required properties prevents + // noise from being injected into the scope + } + + ListView { + anchors.fill: parent + model: myModel + delegate: MyDelegate {} + } +} +//! [document] |