282 lines
17 KiB
HTML
282 lines
17 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en_US" lang="en_US">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<!-- qsqlrelationaldelegate.cpp -->
|
|
<title>Qt 4.8: QSqlRelationalDelegate Class Reference</title>
|
|
<link rel="stylesheet" type="text/css" href="style/style.css" />
|
|
<script src="scripts/jquery.js" type="text/javascript"></script>
|
|
<script src="scripts/functions.js" type="text/javascript"></script>
|
|
<link rel="stylesheet" type="text/css" href="style/superfish.css" />
|
|
<link rel="stylesheet" type="text/css" href="style/narrow.css" />
|
|
<!--[if IE]>
|
|
<meta name="MSSmartTagsPreventParsing" content="true">
|
|
<meta http-equiv="imagetoolbar" content="no">
|
|
<![endif]-->
|
|
<!--[if lt IE 7]>
|
|
<link rel="stylesheet" type="text/css" href="style/style_ie6.css">
|
|
<![endif]-->
|
|
<!--[if IE 7]>
|
|
<link rel="stylesheet" type="text/css" href="style/style_ie7.css">
|
|
<![endif]-->
|
|
<!--[if IE 8]>
|
|
<link rel="stylesheet" type="text/css" href="style/style_ie8.css">
|
|
<![endif]-->
|
|
|
|
<script src="scripts/superfish.js" type="text/javascript"></script>
|
|
<script src="scripts/narrow.js" type="text/javascript"></script>
|
|
|
|
</head>
|
|
<body class="" onload="CheckEmptyAndLoadList();">
|
|
<div class="header" id="qtdocheader">
|
|
<div class="content">
|
|
<div id="nav-logo">
|
|
<a href="index.html">Home</a></div>
|
|
<a href="index.html" class="qtref"><span>Qt Reference Documentation</span></a>
|
|
<div id="narrowsearch"></div>
|
|
<div id="nav-topright">
|
|
<ul>
|
|
<li class="nav-topright-home"><a href="http://qt.digia.com/">Qt HOME</a></li>
|
|
<li class="nav-topright-dev"><a href="http://qt-project.org/">DEV</a></li>
|
|
<li class="nav-topright-doc nav-topright-doc-active"><a href="http://qt-project.org/doc/">
|
|
DOC</a></li>
|
|
<li class="nav-topright-blog"><a href="http://blog.qt.digia.com/">BLOG</a></li>
|
|
</ul>
|
|
</div>
|
|
<div id="shortCut">
|
|
<ul>
|
|
<li class="shortCut-topleft-inactive"><span><a href="index.html">Qt 4.8</a></span></li>
|
|
<li class="shortCut-topleft-active"><a href="http://qt-project.org/doc/">ALL VERSIONS </a></li>
|
|
</ul>
|
|
</div>
|
|
<ul class="sf-menu" id="narrowmenu">
|
|
<li><a href="#">API Lookup</a>
|
|
<ul>
|
|
<li><a href="classes.html">Class index</a></li>
|
|
<li><a href="functions.html">Function index</a></li>
|
|
<li><a href="modules.html">Modules</a></li>
|
|
<li><a href="namespaces.html">Namespaces</a></li>
|
|
<li><a href="qtglobal.html">Global Declarations</a></li>
|
|
<li><a href="qdeclarativeelements.html">QML elements</a></li>
|
|
</ul>
|
|
</li>
|
|
<li><a href="#">Qt Topics</a>
|
|
<ul>
|
|
<li><a href="qt-basic-concepts.html">Programming with Qt</a></li>
|
|
<li><a href="qtquick.html">Device UIs & Qt Quick</a></li>
|
|
<li><a href="qt-gui-concepts.html">UI Design with Qt</a></li>
|
|
<li><a href="supported-platforms.html">Supported Platforms</a></li>
|
|
<li><a href="technology-apis.html">Qt and Key Technologies</a></li>
|
|
<li><a href="best-practices.html">How-To's and Best Practices</a></li>
|
|
</ul>
|
|
</li>
|
|
<li><a href="#">Examples</a>
|
|
<ul>
|
|
<li><a href="all-examples.html">Examples</a></li>
|
|
<li><a href="tutorials.html">Tutorials</a></li>
|
|
<li><a href="demos.html">Demos</a></li>
|
|
<li><a href="qdeclarativeexamples.html">QML Examples</a></li>
|
|
</ul>
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
<div class="wrapper">
|
|
<div class="hd">
|
|
<span></span>
|
|
</div>
|
|
<div class="bd group">
|
|
<div class="sidebar">
|
|
<div class="searchlabel">
|
|
Search index:</div>
|
|
<div class="search" id="sidebarsearch">
|
|
<form id="qtdocsearch" action="" onsubmit="return false;">
|
|
<fieldset>
|
|
<input type="text" name="searchstring" id="pageType" value="" />
|
|
<div id="resultdialog">
|
|
<a href="#" id="resultclose">Close</a>
|
|
<p id="resultlinks" class="all"><a href="#" id="showallresults">All</a> | <a href="#" id="showapiresults">API</a> | <a href="#" id="showarticleresults">Articles</a> | <a href="#" id="showexampleresults">Examples</a></p>
|
|
<p id="searchcount" class="all"><span id="resultcount"></span><span id="apicount"></span><span id="articlecount"></span><span id="examplecount"></span> results:</p>
|
|
<ul id="resultlist" class="all">
|
|
</ul>
|
|
</div>
|
|
</fieldset>
|
|
</form>
|
|
</div>
|
|
<div class="box first bottombar" id="lookup">
|
|
<h2 title="API Lookup"><span></span>
|
|
API Lookup</h2>
|
|
<div id="list001" class="list">
|
|
<ul id="ul001" >
|
|
<li class="defaultLink"><a href="classes.html">Class index</a></li>
|
|
<li class="defaultLink"><a href="functions.html">Function index</a></li>
|
|
<li class="defaultLink"><a href="modules.html">Modules</a></li>
|
|
<li class="defaultLink"><a href="namespaces.html">Namespaces</a></li>
|
|
<li class="defaultLink"><a href="qtglobal.html">Global Declarations</a></li>
|
|
<li class="defaultLink"><a href="qdeclarativeelements.html">QML elements</a></li>
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
<div class="box bottombar" id="topics">
|
|
<h2 title="Qt Topics"><span></span>
|
|
Qt Topics</h2>
|
|
<div id="list002" class="list">
|
|
<ul id="ul002" >
|
|
<li class="defaultLink"><a href="qt-basic-concepts.html">Programming with Qt</a></li>
|
|
<li class="defaultLink"><a href="qtquick.html">Device UIs & Qt Quick</a></li>
|
|
<li class="defaultLink"><a href="qt-gui-concepts.html">UI Design with Qt</a></li>
|
|
<li class="defaultLink"><a href="supported-platforms.html">Supported Platforms</a></li>
|
|
<li class="defaultLink"><a href="technology-apis.html">Qt and Key Technologies</a></li>
|
|
<li class="defaultLink"><a href="best-practices.html">How-To's and Best Practices</a></li>
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
<div class="box" id="examples">
|
|
<h2 title="Examples"><span></span>
|
|
Examples</h2>
|
|
<div id="list003" class="list">
|
|
<ul id="ul003">
|
|
<li class="defaultLink"><a href="all-examples.html">Examples</a></li>
|
|
<li class="defaultLink"><a href="tutorials.html">Tutorials</a></li>
|
|
<li class="defaultLink"><a href="demos.html">Demos</a></li>
|
|
<li class="defaultLink"><a href="qdeclarativeexamples.html">QML Examples</a></li>
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="wrap">
|
|
<div class="toolbar">
|
|
<div class="breadcrumb toolblock">
|
|
<ul>
|
|
<li class="first"><a href="index.html">Home</a></li>
|
|
<!-- Breadcrumbs go here -->
|
|
<li><a href="modules.html">Modules</a></li>
|
|
<li><a href="qtsql.html">QtSql</a></li>
|
|
<li>QSqlRelationalDelegate</li>
|
|
</ul>
|
|
</div>
|
|
<div class="toolbuttons toolblock">
|
|
<ul>
|
|
<li id="smallA" class="t_button">A</li>
|
|
<li id="medA" class="t_button active">A</li>
|
|
<li id="bigA" class="t_button">A</li>
|
|
<li id="print" class="t_button"><a href="javascript:this.print();">
|
|
<span>Print</span></a></li>
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
<div class="content mainContent">
|
|
<div class="toc">
|
|
<h3><a name="toc">Contents</a></h3>
|
|
<ul>
|
|
<li class="level1"><a href="#public-functions">Public Functions</a></li>
|
|
<li class="level1"><a href="#details">Detailed Description</a></li>
|
|
</ul>
|
|
</div>
|
|
<h1 class="title">QSqlRelationalDelegate Class Reference</h1>
|
|
<!-- $$$QSqlRelationalDelegate-brief -->
|
|
<p>The QSqlRelationalDelegate class provides a delegate that is used to display and edit data from a <a href="qsqlrelationaltablemodel.html">QSqlRelationalTableModel</a>. <a href="#details">More...</a></p>
|
|
<!-- @@@QSqlRelationalDelegate -->
|
|
<pre class="cpp"> <span class="preprocessor">#include <QSqlRelationalDelegate></span></pre><p><b>Inherits: </b><a href="qitemdelegate.html">QItemDelegate</a>.</p>
|
|
<ul>
|
|
<li><a href="qsqlrelationaldelegate-members.html">List of all members, including inherited members</a></li>
|
|
</ul>
|
|
<a name="public-functions"></a>
|
|
<h2>Public Functions</h2>
|
|
<table class="alignedsummary">
|
|
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsqlrelationaldelegate.html#QSqlRelationalDelegate">QSqlRelationalDelegate</a></b> ( QObject * <i>parent</i> = 0 )</td></tr>
|
|
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsqlrelationaldelegate.html#dtor.QSqlRelationalDelegate">~QSqlRelationalDelegate</a></b> ()</td></tr>
|
|
</table>
|
|
<a name="reimplemented-public-functions"></a>
|
|
<h2>Reimplemented Public Functions</h2>
|
|
<table class="alignedsummary">
|
|
<tr><td class="memItemLeft rightAlign topAlign"> virtual QWidget * </td><td class="memItemRight bottomAlign"><b><a href="qsqlrelationaldelegate.html#createEditor">createEditor</a></b> ( QWidget * <i>parent</i>, const QStyleOptionViewItem & <i>option</i>, const QModelIndex & <i>index</i> ) const</td></tr>
|
|
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qsqlrelationaldelegate.html#setEditorData">setEditorData</a></b> ( QWidget * <i>editor</i>, const QModelIndex & <i>index</i> ) const</td></tr>
|
|
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qsqlrelationaldelegate.html#setModelData">setModelData</a></b> ( QWidget * <i>editor</i>, QAbstractItemModel * <i>model</i>, const QModelIndex & <i>index</i> ) const</td></tr>
|
|
</table>
|
|
<ul>
|
|
<li class="fn">10 public functions inherited from <a href="qitemdelegate.html#public-functions">QItemDelegate</a></li>
|
|
<li class="fn">7 public functions inherited from <a href="qabstractitemdelegate.html#public-functions">QAbstractItemDelegate</a></li>
|
|
<li class="fn">29 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li>
|
|
</ul>
|
|
<h3>Additional Inherited Members</h3>
|
|
<ul>
|
|
<li class="fn">1 property inherited from <a href="qitemdelegate.html#properties">QItemDelegate</a></li>
|
|
<li class="fn">1 property inherited from <a href="qobject.html#properties">QObject</a></li>
|
|
<li class="fn">1 public slot inherited from <a href="qabstractitemdelegate.html#public-slots">QAbstractItemDelegate</a></li>
|
|
<li class="fn">1 public slot inherited from <a href="qobject.html#public-slots">QObject</a></li>
|
|
<li class="fn">3 signals inherited from <a href="qabstractitemdelegate.html#signals">QAbstractItemDelegate</a></li>
|
|
<li class="fn">1 signal inherited from <a href="qobject.html#signals">QObject</a></li>
|
|
<li class="fn">7 static public members inherited from <a href="qobject.html#static-public-members">QObject</a></li>
|
|
<li class="fn">7 protected functions inherited from <a href="qitemdelegate.html#protected-functions">QItemDelegate</a></li>
|
|
<li class="fn">8 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>
|
|
</ul>
|
|
<a name="details"></a>
|
|
<!-- $$$QSqlRelationalDelegate-description -->
|
|
<div class="descr">
|
|
<h2>Detailed Description</h2>
|
|
<p>The QSqlRelationalDelegate class provides a delegate that is used to display and edit data from a <a href="qsqlrelationaltablemodel.html">QSqlRelationalTableModel</a>.</p>
|
|
<p>Unlike the default delegate, QSqlRelationalDelegate provides a combobox for fields that are foreign keys into other tables. To use the class, simply call <a href="qabstractitemview.html#setItemDelegate">QAbstractItemView::setItemDelegate</a>() on the view with an instance of QSqlRelationalDelegate:</p>
|
|
<pre class="cpp"> <span class="type"><a href="qtableview.html">QTableView</a></span> <span class="operator">*</span>view <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtableview.html">QTableView</a></span>;
|
|
view<span class="operator">-</span><span class="operator">></span>setModel(model);
|
|
view<span class="operator">-</span><span class="operator">></span>setItemDelegate(<span class="keyword">new</span> <span class="type">QSqlRelationalDelegate</span>(view));</pre>
|
|
<p>The <a href="sql-relationaltablemodel.html">Relational Table Model</a> example (shown below) illustrates how to use QSqlRelationalDelegate in conjunction with <a href="qsqlrelationaltablemodel.html">QSqlRelationalTableModel</a> to provide tables with foreign key support.</p>
|
|
<p class="centerAlign"><img src="images/relationaltable.png" alt="" /></p></div>
|
|
<p><b>See also </b><a href="qsqlrelationaltablemodel.html">QSqlRelationalTableModel</a> and <a href="model-view-programming.html">Model/View Programming</a>.</p>
|
|
<!-- @@@QSqlRelationalDelegate -->
|
|
<div class="func">
|
|
<h2>Member Function Documentation</h2>
|
|
<!-- $$$QSqlRelationalDelegate[overload1]$$$QSqlRelationalDelegateQObject* -->
|
|
<h3 class="fn"><a name="QSqlRelationalDelegate"></a>QSqlRelationalDelegate::<span class="name">QSqlRelationalDelegate</span> ( <span class="type"><a href="qobject.html">QObject</a></span> * <i>parent</i> = 0 )</h3>
|
|
<p>Constructs a <a href="qsqlrelationaldelegate.html">QSqlRelationalDelegate</a> object with the given <i>parent</i>.</p>
|
|
<!-- @@@QSqlRelationalDelegate -->
|
|
<!-- $$$~QSqlRelationalDelegate[overload1]$$$~QSqlRelationalDelegate -->
|
|
<h3 class="fn"><a name="dtor.QSqlRelationalDelegate"></a>QSqlRelationalDelegate::<span class="name">~QSqlRelationalDelegate</span> ()</h3>
|
|
<p>Destroys the <a href="qsqlrelationaldelegate.html">QSqlRelationalDelegate</a> object and frees any allocated resources.</p>
|
|
<!-- @@@~QSqlRelationalDelegate -->
|
|
<!-- $$$createEditor[overload1]$$$createEditorQWidget*constQStyleOptionViewItem&constQModelIndex& -->
|
|
<h3 class="fn"><a name="createEditor"></a><span class="type"><a href="qwidget.html">QWidget</a></span> * QSqlRelationalDelegate::<span class="name">createEditor</span> ( <span class="type"><a href="qwidget.html">QWidget</a></span> * <i>parent</i>, const <span class="type"><a href="qstyleoptionviewitem.html">QStyleOptionViewItem</a></span> & <i>option</i>, const <span class="type"><a href="qmodelindex.html">QModelIndex</a></span> & <i>index</i> ) const<tt> [virtual]</tt></h3>
|
|
<p>Reimplemented from <a href="qabstractitemdelegate.html#createEditor">QAbstractItemDelegate::createEditor</a>().</p>
|
|
<!-- @@@createEditor -->
|
|
<!-- $$$setEditorData[overload1]$$$setEditorDataQWidget*constQModelIndex& -->
|
|
<h3 class="fn"><a name="setEditorData"></a><span class="type">void</span> QSqlRelationalDelegate::<span class="name">setEditorData</span> ( <span class="type"><a href="qwidget.html">QWidget</a></span> * <i>editor</i>, const <span class="type"><a href="qmodelindex.html">QModelIndex</a></span> & <i>index</i> ) const<tt> [virtual]</tt></h3>
|
|
<p>Reimplemented from <a href="qabstractitemdelegate.html#setEditorData">QAbstractItemDelegate::setEditorData</a>().</p>
|
|
<!-- @@@setEditorData -->
|
|
<!-- $$$setModelData[overload1]$$$setModelDataQWidget*QAbstractItemModel*constQModelIndex& -->
|
|
<h3 class="fn"><a name="setModelData"></a><span class="type">void</span> QSqlRelationalDelegate::<span class="name">setModelData</span> ( <span class="type"><a href="qwidget.html">QWidget</a></span> * <i>editor</i>, <span class="type"><a href="qabstractitemmodel.html">QAbstractItemModel</a></span> * <i>model</i>, const <span class="type"><a href="qmodelindex.html">QModelIndex</a></span> & <i>index</i> ) const<tt> [virtual]</tt></h3>
|
|
<p>Reimplemented from <a href="qabstractitemdelegate.html#setModelData">QAbstractItemDelegate::setModelData</a>().</p>
|
|
<!-- @@@setModelData -->
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="ft">
|
|
<span></span>
|
|
</div>
|
|
</div>
|
|
<div class="footer">
|
|
<p>
|
|
<acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd.
|
|
Documentation contributions included herein are the copyrights of
|
|
their respective owners.</p>
|
|
<br />
|
|
<p>
|
|
The documentation provided herein is licensed under the terms of the
|
|
<a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation
|
|
License version 1.3</a> as published by the Free Software Foundation.</p>
|
|
<p>
|
|
Documentation sources may be obtained from <a href="http://www.qt-project.org">
|
|
www.qt-project.org</a>.</p>
|
|
<br />
|
|
<p>
|
|
Qt and respective logos are trademarks of The Qt Company Ltd
|
|
in Finland and/or other countries worldwide. All other trademarks are property
|
|
of their respective owners. <a title="Privacy Policy"
|
|
href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p>
|
|
</div>
|
|
|
|
<script src="scripts/functions.js" type="text/javascript"></script>
|
|
</body>
|
|
</html>
|