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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">Q3DataView Class Reference</h1>

<p>The Q3DataView class provides read-only SQL forms. <a href="#details">More...</a></p>

<pre>#include <Q3DataView></pre><p><b>This class is part of the Qt 3 support library.</b> It is provided to keep old source code working. We strongly advise against using it in new code. See the <a href="porting4.html">Porting Guide</a> for more information.</p>

<p>Part of the <a href="qt3support.html">Qt3Support</a> module.</p>

<p>Inherits <a href="qwidget.html">QWidget</a>.</p>

<ul>

<li><a href="q3dataview-members.html">List of all members, including inherited members</a></li>

</ul>

<h3>Public Functions</h3>

<ul>

<li><div class="fn"/><b><a href="q3dataview.html#Q3DataView">Q3DataView</a></b> ( QWidget * <i>parent</i> = 0, const char * <i>name</i> = 0, Qt::WFlags <i>fl</i> = 0 )</li>

<li><div class="fn"/><b><a href="q3dataview.html#dtor.Q3DataView">~Q3DataView</a></b> ()</li>

<li><div class="fn"/>Q3SqlForm * <b><a href="q3dataview.html#form">form</a></b> ()</li>

<li><div class="fn"/>QSqlRecord * <b><a href="q3dataview.html#record">record</a></b> ()</li>

<li><div class="fn"/>virtual void <b><a href="q3dataview.html#setForm">setForm</a></b> ( Q3SqlForm * <i>form</i> )</li>

<li><div class="fn"/>virtual void <b><a href="q3dataview.html#setRecord">setRecord</a></b> ( QSqlRecord * <i>record</i> )</li>

</ul>

<ul>

<li><div class="fn"/>183 public functions inherited from <a href="qwidget.html#public-functions">QWidget</a></li>

<li><div class="fn"/>28 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li>

<li><div class="fn"/>10 public functions inherited from <a href="qpaintdevice.html#public-functions">QPaintDevice</a></li>

</ul>

<h3>Public Slots</h3>

<ul>

<li><div class="fn"/>virtual void <b><a href="q3dataview.html#clearValues">clearValues</a></b> ()</li>

<li><div class="fn"/>virtual void <b><a href="q3dataview.html#readFields">readFields</a></b> ()</li>

<li><div class="fn"/>virtual void <b><a href="q3dataview.html#refresh">refresh</a></b> ( QSqlRecord * <i>buf</i> )</li>

<li><div class="fn"/>virtual void <b><a href="q3dataview.html#writeFields">writeFields</a></b> ()</li>

</ul>

<ul>

<li><div class="fn"/>17 public slots inherited from <a href="qwidget.html#public-slots">QWidget</a></li>

<li><div class="fn"/>1 public slot inherited from <a href="qobject.html#public-slots">QObject</a></li>

</ul>

<h3>Additional Inherited Members</h3>

<ul>

<li><div class="fn"/>52 properties inherited from <a href="qwidget.html#properties">QWidget</a></li>

<li><div class="fn"/>1 property inherited from <a href="qobject.html#properties">QObject</a></li>

<li><div class="fn"/>1 signal inherited from <a href="qwidget.html#signals">QWidget</a></li>

<li><div class="fn"/>1 signal inherited from <a href="qobject.html#signals">QObject</a></li>

<li><div class="fn"/>4 static public members inherited from <a href="qwidget.html#static-public-members">QWidget</a></li>

<li><div class="fn"/>4 static public members inherited from <a href="qobject.html#static-public-members">QObject</a></li>

<li><div class="fn"/>39 protected functions inherited from <a href="qwidget.html#protected-functions">QWidget</a></li>

<li><div class="fn"/>7 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>

</ul>

<hr />

<h2>Detailed Description</h2>

<p>The Q3DataView class provides read-only SQL forms.</p>

<p>This class provides a form which displays SQL field data from a record buffer. Because Q3DataView does not support editing it uses less resources than a <a href="q3databrowser.html">Q3DataBrowser</a>. This class is well suited for displaying read-only data from a SQL database.</p>

<p>If you want a to present your data in an editable form use <a href="q3databrowser.html">Q3DataBrowser</a>; if you want a table-based presentation of your data use <a href="q3datatable.html">Q3DataTable</a>.</p>

<p>The form is associated with the data view with <a href="q3dataview.html#setForm">setForm</a>() and the record is associated with <a href="q3dataview.html#setRecord">setRecord</a>(). You can also pass a <a href="qsqlrecord.html">QSqlRecord</a> to the <a href="q3dataview.html#refresh">refresh</a>() function which will set the record to the given record and read the record's fields into the form.</p>

<hr />

<h2>Member Function Documentation</h2>

<h3 class="fn"><a name="Q3DataView"></a>Q3DataView::Q3DataView ( <a href="qwidget.html">QWidget</a> * <i>parent</i> = 0, const char * <i>name</i> = 0, <a href="qt.html#WFlags-typedef">Qt::WFlags</a> <i>fl</i> = 0 )</h3>

<p>Constructs a data view which is a child of <i>parent</i>, called <i>name</i>, and with widget flags <i>fl</i>.</p>

<h3 class="fn"><a name="dtor.Q3DataView"></a>Q3DataView::~Q3DataView ()</h3>

<p>Destroys the object and frees any allocated resources.</p>

<h3 class="fn"><a name="clearValues"></a>void Q3DataView::clearValues ()  <tt> [virtual slot]</tt></h3>

<p>Clears the default form's values. If there is no default form, nothing happens. All the values are set to their 'zero state', e.g. 0 for numeric fields, "" for string fields.</p>

<h3 class="fn"><a name="form"></a><a href="q3sqlform.html">Q3SqlForm</a> * Q3DataView::form ()</h3>

<p>Returns the default form used by the data view, or 0 if there is none.</p>

<p>See also <a href="q3dataview.html#setForm">setForm</a>().</p>

<h3 class="fn"><a name="readFields"></a>void Q3DataView::readFields ()  <tt> [virtual slot]</tt></h3>

<p>Causes the default form to read its fields from the record buffer. If there is no default form, or no record, nothing happens.</p>

<p>See also <a href="q3dataview.html#setForm">setForm</a>().</p>

<h3 class="fn"><a name="record"></a><a href="qsqlrecord.html">QSqlRecord</a> * Q3DataView::record ()</h3>

<p>Returns the default record used by the data view, or 0 if there is none.</p>

<p>See also <a href="q3dataview.html#setRecord">setRecord</a>().</p>

<h3 class="fn"><a name="refresh"></a>void Q3DataView::refresh ( <a href="qsqlrecord.html">QSqlRecord</a> * <i>buf</i> )  <tt> [virtual slot]</tt></h3>

<p>Causes the default form to display the contents of <i>buf</i>. If there is no default form, nothing happens.The <i>buf</i> also becomes the default record for all subsequent calls to <a href="q3dataview.html#readFields">readFields</a>() and writefields(). This slot is equivalant to calling:</p>

<pre>  myView.setRecord(record);

myView.readFields();</pre>

<p>See also <a href="q3dataview.html#setRecord">setRecord</a>() and <a href="q3dataview.html#readFields">readFields</a>().</p>

<h3 class="fn"><a name="setForm"></a>void Q3DataView::setForm ( <a href="q3sqlform.html">Q3SqlForm</a> * <i>form</i> )  <tt> [virtual]</tt></h3>

<p>Sets the form used by the data view to <i>form</i>. If a record has already been assigned to the data view, the form will display that record's data.</p>

<h3 class="fn"><a name="setRecord"></a>void Q3DataView::setRecord ( <a href="qsqlrecord.html">QSqlRecord</a> * <i>record</i> )  <tt> [virtual]</tt></h3>

<p>Sets the record used by the data view to <i>record</i>. If a form has already been assigned to the data view, the form will display the data from <i>record</i> in that form.</p>

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<p>See also <a href="q3dataview.html#record">record</a>().</p>

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<h3 class="fn"><a name="writeFields"></a>void Q3DataView::writeFields ()  <tt> [virtual slot]</tt></h3>

102

<p>Causes the default form to write its fields to the record buffer. If there is no default form, or no record, nothing happens.</p>

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<p>See also <a href="q3dataview.html#setForm">setForm</a>().</p>

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