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  • Committer: Bazaar Package Importer
  • Author(s): Adam Conrad
  • Date: 2005-08-24 04:09:09 UTC
  • Revision ID: james.westby@ubuntu.com-20050824040909-xmxe9jfr4a0w5671
Tags: upstream-4.0.0
Import upstream version 4.0.0

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doc/html/qsqlrelationaldelegate.html
 
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<?xml version="1.0" encoding="iso-8859-1"?>
 
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<!DOCTYPE html
 
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    PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">
 
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
 
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<!-- /tmp/qt-4.0.0-espenr-1119621036935/qt-x11-opensource-desktop-4.0.0/src/sql/models/qsqlrelationaldelegate.cpp -->
 
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<head>
 
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    <title>Qt 4.0: QSqlRelationalDelegate Class Reference</title>
 
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    <style>h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }
 
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body { background: #ffffff; color: black; }</style>
 
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</head>
 
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<body>
 
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
 
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<tr>
 
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<td align="left" valign="top" width="32"><img src="images/qt-logo.png" align="left" width="32" height="32" border="0" /></td>
 
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<td width="1">&nbsp;&nbsp;</td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a>&nbsp;&middot; <a href="classes.html"><font color="#004faf">All&nbsp;Classes</font></a>&nbsp;&middot; <a href="mainclasses.html"><font color="#004faf">Main&nbsp;Classes</font></a>&nbsp;&middot; <a href="annotated.html"><font color="#004faf">Annotated</font></a>&nbsp;&middot; <a href="groups.html"><font color="#004faf">Grouped&nbsp;Classes</font></a>&nbsp;&middot; <a href="functions.html"><font color="#004faf">Functions</font></a></td>
 
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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">QSqlRelationalDelegate Class Reference</h1>
 
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<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>
 
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<pre>#include &lt;QSqlRelationalDelegate&gt;</pre><p>Part of the <a href="qtsql.html">QtSql</a> module.</p>
 
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<p>Inherits <a href="qitemdelegate.html">QItemDelegate</a>.</p>
 
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<ul>
 
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<li><a href="qsqlrelationaldelegate-members.html">List of all members, including inherited members</a></li>
 
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</ul>
 
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<a name="public-functions"></a>
 
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<h3>Public Functions</h3>
 
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<ul>
 
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<li><div class="fn"/><b><a href="qsqlrelationaldelegate.html#QSqlRelationalDelegate">QSqlRelationalDelegate</a></b> ( QObject * <i>parent</i> = 0 )</li>
 
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<li><div class="fn"/><b><a href="qsqlrelationaldelegate.html#dtor.QSqlRelationalDelegate">~QSqlRelationalDelegate</a></b> ()</li>
 
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</ul>
 
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<ul>
 
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<li><div class="fn"/>8 public functions inherited from <a href="qitemdelegate.html#public-functions">QItemDelegate</a></li>
 
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<li><div class="fn"/>7 public functions inherited from <a href="qabstractitemdelegate.html#public-functions">QAbstractItemDelegate</a></li>
 
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<li><div class="fn"/>28 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li>
 
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</ul>
 
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<h3>Additional Inherited Members</h3>
 
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<ul>
 
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<li><div class="fn"/>1 property inherited from <a href="qobject.html#properties">QObject</a></li>
 
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<li><div class="fn"/>1 public slot inherited from <a href="qobject.html#public-slots">QObject</a></li>
 
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<li><div class="fn"/>2 signals inherited from <a href="qabstractitemdelegate.html#signals">QAbstractItemDelegate</a></li>
 
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<li><div class="fn"/>1 signal inherited from <a href="qobject.html#signals">QObject</a></li>
 
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<li><div class="fn"/>1 static public member inherited from <a href="qabstractitemdelegate.html#static-public-members">QAbstractItemDelegate</a></li>
 
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<li><div class="fn"/>4 static public members inherited from <a href="qobject.html#static-public-members">QObject</a></li>
 
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<li><div class="fn"/>4 protected functions inherited from <a href="qitemdelegate.html#protected-functions">QItemDelegate</a></li>
 
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<li><div class="fn"/>7 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>
 
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</ul>
 
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<a name="details"></a>
 
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<hr />
 
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<h2>Detailed Description</h2>
 
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<p>The QSqlRelationalDelegate class provides a delegate that is used to display and edit data from a <a href="qsqlrelationaltablemodel.html">QSqlRelationalTableModel</a>.</p>
 
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<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>
 
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<pre>&nbsp;       QTableView *view = new QTableView;
 
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        view-&gt;setModel(model);
 
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        view-&gt;setItemDelegate(new QSqlRelationalDelegate(view));</pre>
 
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<p>The <a href="sql-relationaltablemodel.html">sql/relationaltablemodel</a> example (shown below) illustrates how to use QSqlRelationalDelegate in conjunction with <a href="qsqlrelationaltablemodel.html">QSqlRelationalTableModel</a> to provide tables with foreigh key support.</p>
 
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<center><img src="images/relationaltable.png" /></center><p>See also <a href="qsqlrelationaltablemodel.html">QSqlRelationalTableModel</a> and <a href="model-view-programming.html">Model/View Programming</a>.</p>
 
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<hr />
 
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<h2>Member Function Documentation</h2>
 
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<h3 class="fn"><a name="QSqlRelationalDelegate"></a>QSqlRelationalDelegate::QSqlRelationalDelegate ( <a href="qobject.html">QObject</a> * <i>parent</i> = 0 )</h3>
 
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<p>Constructs a <a href="qsqlrelationaldelegate.html">QSqlRelationalDelegate</a> object with the given <i>parent</i>.</p>
 
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<h3 class="fn"><a name="dtor.QSqlRelationalDelegate"></a>QSqlRelationalDelegate::~QSqlRelationalDelegate ()</h3>
 
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<p>Destroys the <a href="qsqlrelationaldelegate.html">QSqlRelationalDelegate</a> object and frees any allocated resources.</p>
 
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<p /><address><hr /><div align="center">
 
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<table width="100%" cellspacing="0" border="0"><tr class="address">
 
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<td width="30%">Copyright &copy; 2005 <a href="trolltech.html">Trolltech</a></td>
 
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<td width="40%" align="center"><a href="trademarks.html">Trademarks</a></td>
 
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<td width="30%" align="right"><div align="right">Qt 4.0.0</div></td>
 
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</tr></table></div></address></body>
 
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</html>