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<td >Qt 5.12</td><td ><a href="qtqml-index.html">Qt QML</a></td><td ><a href="qtqml-qmlmodule.html">QML Types</a></td><td >Package QML Type</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtqml-index.html">Qt 5.12.6 Reference Documentation</a></td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#attached-properties">Attached Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">Package QML Type</h1>
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<p>Specifies a collection of named items. <a href="#details">More...</a></p>
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<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import .</td></tr></table></div><ul>
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<a name="attached-properties"></a>
<h2 id="attached-properties">Attached Properties</h2>
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<li class="fn"><b><b><a href="qml-package.html#name-attached-prop">name</a></b></b> : string</li>
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<h2 id="details">Detailed Description</h2>
<p>The Package type is used in conjunction with <a href="qml-qtqml-models-delegatemodel.html">DelegateModel</a> to enable delegates with a shared context to be provided to multiple views.</p>
<p>Any item within a Package may be assigned a name via the <a href="qml-package.html#name-attached-prop">Package.name</a> attached property.</p>
<p>The example below creates a Package containing two named items; <i>list</i> and <i>grid</i>. The third item in the package (the Rectangle) is parented to whichever delegate it should appear in. This allows an item to move between views.</p>
<pre class="qml">
Package {
Text { id: listDelegate; width: parent.width; height: 25; text: 'Empty'; Package.name: 'list' }
Text { id: gridDelegate; width: parent.width / 2; height: 50; text: 'Empty'; Package.name: 'grid' }
Rectangle {
id: wrapper
width: parent.width; height: 25
color: 'lightsteelblue'
Text { text: display; anchors.centerIn: parent }
state: root.upTo > index ? 'inGrid' : 'inList'
states: [
State {
name: 'inList'
ParentChange { target: wrapper; parent: listDelegate }
},
State {
name: 'inGrid'
ParentChange {
target: wrapper; parent: gridDelegate
x: 0; y: 0; width: gridDelegate.width; height: gridDelegate.height
}
}
]
transitions: [
Transition {
ParentAnimation {
NumberAnimation { properties: 'x,y,width,height'; duration: 300 }
}
}
]
}
}
</pre>
<p>These named items are used as the delegates by the two views who reference the special <a href="qml-qtqml-models-delegatemodel.html#parts-prop">DelegateModel::parts</a> property to select a model which provides the chosen delegate.</p>
<pre class="qml">
DelegateModel {
id: visualModel
delegate: Delegate {}
model: myModel
}
ListView {
id: lv
height: parent.height/2
width: parent.width
model: visualModel.parts.list
}
GridView {
y: parent.height/2
height: parent.height/2
width: parent.width
cellWidth: width / 2
cellHeight: 50
model: visualModel.parts.grid
}
</pre>
<p><b>See also </b>Qt Quick Examples - Views, Qt Quick Demo - Photo Viewer, and <a href="qtqml-index.html">Qt QML</a>.</p>
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<h2>Attached Property Documentation</h2>
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<tr valign="top" class="odd" id="name-attached-prop">
<td class="tblQmlPropNode"><p>
<a name="name-attached-prop"></a><span class="name">Package.name</span> : <span class="type"><a href="qml-string.html">string</a></span></p></td></tr>
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</div><div class="qmldoc"><p>This attached property holds the name of an item within a Package.</p>
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