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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<div class="navpath"><a class="el" href="namespaceWt.html">Wt</a>::<a class="el" href="namespaceWt_1_1Ext.html">Ext</a>::<a class="el" href="classWt_1_1Ext_1_1ComboBox.html">ComboBox</a>
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<div class="contents">
<h1>Wt::Ext::ComboBox Class Reference<br>
<small>
[<a class="el" href="group__ext.html">Ext widgets</a>, <a class="el" href="group__modelview.html">Model/view system</a>]</small>
</h1><!-- doxytag: class="Wt::Ext::ComboBox" --><!-- doxytag: inherits="Wt::Ext::LineEdit" -->A widget that provides a drop-down combo-box control.
<a href="#_details">More...</a>
<p>
<code>#include <Wt/Ext/ComboBox></code>
<p>
<div class="dynheader">
Inheritance diagram for Wt::Ext::ComboBox:</div>
<div class="dynsection">
<p><center><img src="classWt_1_1Ext_1_1ComboBox__inherit__graph.png" border="0" usemap="#Wt_1_1Ext_1_1ComboBox__inherit__map" alt="Inheritance graph"></center>
<map name="Wt_1_1Ext_1_1ComboBox__inherit__map">
<area shape="rect" href="classWt_1_1Ext_1_1LineEdit.html" title="A line edit." alt="" coords="15,453,135,480"><area shape="rect" href="classWt_1_1Ext_1_1FormField.html" title="An abstract base class for form fields." alt="" coords="9,379,140,405"><area shape="rect" href="classWt_1_1Ext_1_1Component.html" title="An abstract base class for widgets that can be visually disabled." alt="" coords="5,304,144,331"><area shape="rect" href="classWt_1_1Ext_1_1Widget.html" title="An abstract base class for all Ext widgets." alt="" coords="19,229,131,256"><area shape="rect" href="classWt_1_1WWebWidget.html" title="A base class for widgets with an HTML counterpart." alt="" coords="13,155,136,181"><area shape="rect" href="classWt_1_1WWidget.html" title="The abstract base class for a user-interface component." alt="" coords="27,80,123,107"><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="27,5,123,32"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
<p>
<a href="classWt_1_1Ext_1_1ComboBox-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="8183ecd2ee82149a57121dc6cce94538"></a><!-- doxytag: member="Wt::Ext::ComboBox::ComboBox" ref="8183ecd2ee82149a57121dc6cce94538" args="(WContainerWidget *parent=0)" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#8183ecd2ee82149a57121dc6cce94538">ComboBox</a> (<a class="el" href="classWt_1_1WContainerWidget.html">WContainerWidget</a> *parent=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Create an empty combo-box with optional <em>parent</em>. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#282ddb37ddc6d8606e2385a742a60452">addItem</a> (const <a class="el" href="classWt_1_1WString.html">WString</a> &text)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add an option item. <a href="#282ddb37ddc6d8606e2385a742a60452"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="388ebac95d30babbd8cc494837932587"></a><!-- doxytag: member="Wt::Ext::ComboBox::count" ref="388ebac95d30babbd8cc494837932587" args="() const " -->
int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#388ebac95d30babbd8cc494837932587">count</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the number of items. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#abc76822524dbe503909472ea2aac8db">currentIndex</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the currently selected item. <a href="#abc76822524dbe503909472ea2aac8db"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#6e9f541c754551c1ecbcdeb9337ecfb3">insertItem</a> (int index, const <a class="el" href="classWt_1_1WString.html">WString</a> &text)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Insert an option item at the specified position. <a href="#6e9f541c754551c1ecbcdeb9337ecfb3"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#b17f27bcbd7d93db4f0147699bbdb5a0">removeItem</a> (int index)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Remove the option item at the specified position. <a href="#b17f27bcbd7d93db4f0147699bbdb5a0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#1c9f4f4be0dd147954e8b21931511cdd">setCurrentIndex</a> (int index)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Change the current selection. <a href="#1c9f4f4be0dd147954e8b21931511cdd"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#808bf7caa59a88c172124fe73090a964">setItemText</a> (int index, const <a class="el" href="classWt_1_1WString.html">WString</a> &text)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Change the text for a specified option. <a href="#808bf7caa59a88c172124fe73090a964"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const <a class="el" href="classWt_1_1WString.html">WString</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#a0a811e97424b7980f4da77c3711c72a">currentText</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the text of the currently selected item. <a href="#a0a811e97424b7980f4da77c3711c72a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const <a class="el" href="classWt_1_1WString.html">WString</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#59faa0b8b2cb3a2b25a4b47eb82ecb8b">itemText</a> (int index) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the text of a particular item. <a href="#59faa0b8b2cb3a2b25a4b47eb82ecb8b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#54d18b5dde4bd46b830c2b2ecd6d0765">setModel</a> (<a class="el" href="classWt_1_1WAbstractItemModel.html">WAbstractItemModel</a> *model)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the model to be used for the items. <a href="#54d18b5dde4bd46b830c2b2ecd6d0765"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#46e2c9ac50d405d5e4ad8215ce5bb885">setModelColumn</a> (int index)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the column in the model to be used for the items. <a href="#46e2c9ac50d405d5e4ad8215ce5bb885"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#0c150137b5ad059ba66ee8f0b85b3585">setEditable</a> (bool how)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set if the combo-box is editable. <a href="#0c150137b5ad059ba66ee8f0b85b3585"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#8310599aaa5efc0ae08cf9323f321a7f">setQueryDelay</a> (int milliSeconds)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Configure the delay to filter the list matching the current input. <a href="#8310599aaa5efc0ae08cf9323f321a7f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#181b1185f0ae607c61c62e900cbe479c">setMinQueryLength</a> (int numChars)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Configure the minimum number of characters to be entered before filtering the drop-down list. <a href="#181b1185f0ae607c61c62e900cbe479c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#7e723bcbf36890f51805d8c373198ded">setPageSize</a> (int pageSize)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Configure a page size to show matching values one page at a time. <a href="#7e723bcbf36890f51805d8c373198ded"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#8cbea60f93ad91387200a3e49e33eaf0">setDataLocation</a> (<a class="el" href="group__ext.html#g5bc908c6e6aa90646cca1276d68cb2b2">DataLocation</a> dataLocation)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Configure the location of the data for the combo-box. <a href="#8cbea60f93ad91387200a3e49e33eaf0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#48b20b2d00b523a28e2c1bd0a1a9bfcd">refresh</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Refresh the widget. <a href="#48b20b2d00b523a28e2c1bd0a1a9bfcd"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f91ec32bf3c21c1ccb34d0cd4ad5f8bf"></a><!-- doxytag: member="Wt::Ext::ComboBox::clear" ref="f91ec32bf3c21c1ccb34d0cd4ad5f8bf" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#f91ec32bf3c21c1ccb34d0cd4ad5f8bf">clear</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Clear all items. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="9cde6eed9970ddf8523ecb35c717c1b5"></a><!-- doxytag: member="Wt::Ext::ComboBox::activated" ref="9cde6eed9970ddf8523ecb35c717c1b5" args="()" -->
<a class="el" href="classWt_1_1JSignal.html">JSignal</a>< int > & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#9cde6eed9970ddf8523ecb35c717c1b5">activated</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Signal emitted when the selection changed. <br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A widget that provides a drop-down combo-box control.
<p>
A combo-box provides the user with a choice of options to chose from. Use <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#282ddb37ddc6d8606e2385a742a60452" title="Add an option item.">addItem(const WString&)</a> or <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#6e9f541c754551c1ecbcdeb9337ecfb3" title="Insert an option item at the specified position.">insertItem(int, const WString&)</a> to populate the combo-box. All the content can be cleared through <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#f91ec32bf3c21c1ccb34d0cd4ad5f8bf" title="Clear all items.">clear()</a>.<p>
To act on a new selection, either connect a slot to the <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#9cde6eed9970ddf8523ecb35c717c1b5" title="Signal emitted when the selection changed.">activated()</a> signal.<p>
At all times, the current selection index is available through <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#abc76822524dbe503909472ea2aac8db" title="Get the currently selected item.">currentIndex()</a> or the text using <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#a0a811e97424b7980f4da77c3711c72a" title="Get the text of the currently selected item.">currentText()</a>.<p>
By default the ComboBox uses a <a class="el" href="classWt_1_1WStringListModel.html" title="An model that manages a list of strings.">WStringListModel</a> to store the items. This may be changed by specifying a custom model with <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#54d18b5dde4bd46b830c2b2ecd6d0765" title="Set the model to be used for the items.">setModel()</a>.<p>
When the combobox is configured to be <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#0c150137b5ad059ba66ee8f0b85b3585">editable</a>, the user may enter a value which is not available in the list of values. In that case, <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#a0a811e97424b7980f4da77c3711c72a" title="Get the text of the currently selected item.">currentText()</a> will hold this value, while <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#abc76822524dbe503909472ea2aac8db" title="Get the currently selected item.">currentIndex()</a> == -1 indicates that the value was not in the list.<p>
By default, all the data is downloaded to the client. This may be changed using <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#8cbea60f93ad91387200a3e49e33eaf0" title="Configure the location of the data for the combo-box.">setDataLocation(DataLocation)</a> to keep the data at hte server, and download data on-demand. This is useful if you have a very large list of options.<p>
The API is a superset of the <a class="el" href="classWt_1_1WComboBox.html" title="A widget that provides a drop-down combo-box control.">WComboBox</a> API.<p>
<div align="center">
<img src="ExtComboBox-1.png" alt="ExtComboBox-1.png">
<p><strong>ComboBox with expanded drop-down list.</strong></p></div>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="282ddb37ddc6d8606e2385a742a60452"></a><!-- doxytag: member="Wt::Ext::ComboBox::addItem" ref="282ddb37ddc6d8606e2385a742a60452" args="(const WString &text)" -->
<div class="memitem">
<div class="memproto">
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<td class="memname">void Wt::Ext::ComboBox::addItem </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WString.html">WString</a> & </td>
<td class="paramname"> <em>text</em> </td>
<td> ) </td>
<td></td>
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</div>
<div class="memdoc">
<p>
Add an option item.
<p>
Equivalent to <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#6e9f541c754551c1ecbcdeb9337ecfb3">insertItem </a> (<a class="el" href="classWt_1_1Ext_1_1ComboBox.html#388ebac95d30babbd8cc494837932587" title="Get the number of items.">count()</a>, <em>text</em>).
</div>
</div><p>
<a class="anchor" name="abc76822524dbe503909472ea2aac8db"></a><!-- doxytag: member="Wt::Ext::ComboBox::currentIndex" ref="abc76822524dbe503909472ea2aac8db" args="() const " -->
<div class="memitem">
<div class="memproto">
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<td class="memname">int Wt::Ext::ComboBox::currentIndex </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const</td>
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<div class="memdoc">
<p>
Get the currently selected item.
<p>
If no item is currently selected, the method returns -1. <br>
If the combo-box is <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#0c150137b5ad059ba66ee8f0b85b3585">editable</a> and the entered text does not match an existing item, then this method also returns -1. Otherwise the index is returned of the first item that matches the value of <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#a0a811e97424b7980f4da77c3711c72a" title="Get the text of the currently selected item.">currentText()</a>.
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<a class="anchor" name="6e9f541c754551c1ecbcdeb9337ecfb3"></a><!-- doxytag: member="Wt::Ext::ComboBox::insertItem" ref="6e9f541c754551c1ecbcdeb9337ecfb3" args="(int index, const WString &text)" -->
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<td class="memname">void Wt::Ext::ComboBox::insertItem </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em>, </td>
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<td class="paramtype">const <a class="el" href="classWt_1_1WString.html">WString</a> & </td>
<td class="paramname"> <em>text</em></td><td> </td>
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<p>
Insert an option item at the specified position.
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The option item is inserted at position <em>index</em>.
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<a class="anchor" name="b17f27bcbd7d93db4f0147699bbdb5a0"></a><!-- doxytag: member="Wt::Ext::ComboBox::removeItem" ref="b17f27bcbd7d93db4f0147699bbdb5a0" args="(int index)" -->
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<td class="memname">void Wt::Ext::ComboBox::removeItem </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em> </td>
<td> ) </td>
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<p>
Remove the option item at the specified position.
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The option item at position <em>index</em> will be removed.
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<a class="anchor" name="1c9f4f4be0dd147954e8b21931511cdd"></a><!-- doxytag: member="Wt::Ext::ComboBox::setCurrentIndex" ref="1c9f4f4be0dd147954e8b21931511cdd" args="(int index)" -->
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<td class="memname">void Wt::Ext::ComboBox::setCurrentIndex </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em> </td>
<td> ) </td>
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<p>
Change the current selection.
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Specify a value of -1 for <em>index</em> to clear the selection.
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<a class="anchor" name="808bf7caa59a88c172124fe73090a964"></a><!-- doxytag: member="Wt::Ext::ComboBox::setItemText" ref="808bf7caa59a88c172124fe73090a964" args="(int index, const WString &text)" -->
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<td class="memname">void Wt::Ext::ComboBox::setItemText </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em>, </td>
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<td class="paramtype">const <a class="el" href="classWt_1_1WString.html">WString</a> & </td>
<td class="paramname"> <em>text</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<p>
Change the text for a specified option.
<p>
Use this method to change the text for the item at position <em>index</em>.
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<a class="anchor" name="a0a811e97424b7980f4da77c3711c72a"></a><!-- doxytag: member="Wt::Ext::ComboBox::currentText" ref="a0a811e97424b7980f4da77c3711c72a" args="() const " -->
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<td class="memname">const <a class="el" href="classWt_1_1WString.html">WString</a> Wt::Ext::ComboBox::currentText </td>
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<td class="paramname"> </td>
<td> ) </td>
<td> const</td>
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<p>
Get the text of the currently selected item.
<p>
This retrieves the current text entered by the user. When the combo-box is <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#0c150137b5ad059ba66ee8f0b85b3585">editable</a>, this may be text that does not correspond to any of the items.
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<a class="anchor" name="59faa0b8b2cb3a2b25a4b47eb82ecb8b"></a><!-- doxytag: member="Wt::Ext::ComboBox::itemText" ref="59faa0b8b2cb3a2b25a4b47eb82ecb8b" args="(int index) const " -->
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<td class="memname">const <a class="el" href="classWt_1_1WString.html">WString</a> Wt::Ext::ComboBox::itemText </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em> </td>
<td> ) </td>
<td> const</td>
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<p>
Get the text of a particular item.
<p>
Use this method to get the text for the item at position <em>index</em>.
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<a class="anchor" name="54d18b5dde4bd46b830c2b2ecd6d0765"></a><!-- doxytag: member="Wt::Ext::ComboBox::setModel" ref="54d18b5dde4bd46b830c2b2ecd6d0765" args="(WAbstractItemModel *model)" -->
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<td class="memname">void Wt::Ext::ComboBox::setModel </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classWt_1_1WAbstractItemModel.html">WAbstractItemModel</a> * </td>
<td class="paramname"> <em>model</em> </td>
<td> ) </td>
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<p>
Set the model to be used for the items.
<p>
The <em>model</em> may not be 0, and ownership of the model is not transferred.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#46e2c9ac50d405d5e4ad8215ce5bb885" title="Set the column in the model to be used for the items.">setModelColumn(int)</a> </dd></dl>
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<a class="anchor" name="46e2c9ac50d405d5e4ad8215ce5bb885"></a><!-- doxytag: member="Wt::Ext::ComboBox::setModelColumn" ref="46e2c9ac50d405d5e4ad8215ce5bb885" args="(int index)" -->
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<td class="memname">void Wt::Ext::ComboBox::setModelColumn </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>index</em> </td>
<td> ) </td>
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<p>
Set the column in the model to be used for the items.
<p>
The column <em>index</em> in the model will be used to retrieve data.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#54d18b5dde4bd46b830c2b2ecd6d0765" title="Set the model to be used for the items.">setModel()</a> </dd></dl>
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<a class="anchor" name="0c150137b5ad059ba66ee8f0b85b3585"></a><!-- doxytag: member="Wt::Ext::ComboBox::setEditable" ref="0c150137b5ad059ba66ee8f0b85b3585" args="(bool how)" -->
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<td class="memname">void Wt::Ext::ComboBox::setEditable </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>how</em> </td>
<td> ) </td>
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<p>
Set if the combo-box is editable.
<p>
An editable combo-box allows the user to specify a value that is not part of the list of values.<p>
The default is false.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#a0a811e97424b7980f4da77c3711c72a" title="Get the text of the currently selected item.">currentText()</a> </dd></dl>
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<a class="anchor" name="8310599aaa5efc0ae08cf9323f321a7f"></a><!-- doxytag: member="Wt::Ext::ComboBox::setQueryDelay" ref="8310599aaa5efc0ae08cf9323f321a7f" args="(int milliSeconds)" -->
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<td class="memname">void Wt::Ext::ComboBox::setQueryDelay </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>milliSeconds</em> </td>
<td> ) </td>
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<p>
Configure the delay to filter the list matching the current input.
<p>
After the a delay of <em>milliSeconds</em> milli seconds, the list items are filtered to match the currently entered text and the drop-down list is updated. It is recommended to specify a non-zero delay when using a Remote <a class="el" href="classWt_1_1Ext_1_1ComboBox.html#8cbea60f93ad91387200a3e49e33eaf0">data location</a>.<p>
The default is 0.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#181b1185f0ae607c61c62e900cbe479c" title="Configure the minimum number of characters to be entered before filtering the drop-down...">setMinQueryLength(int)</a> </dd></dl>
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<a class="anchor" name="181b1185f0ae607c61c62e900cbe479c"></a><!-- doxytag: member="Wt::Ext::ComboBox::setMinQueryLength" ref="181b1185f0ae607c61c62e900cbe479c" args="(int numChars)" -->
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<td class="memname">void Wt::Ext::ComboBox::setMinQueryLength </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>numChars</em> </td>
<td> ) </td>
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<p>
Configure the minimum number of characters to be entered before filtering the drop-down list.
<p>
Values in the drop-down list will only be filtered when the entered text contains more that <em>numChars</em> characters.<p>
The default value is 4.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Ext_1_1ComboBox.html#8310599aaa5efc0ae08cf9323f321a7f" title="Configure the delay to filter the list matching the current input.">setQueryDelay(int)</a> </dd></dl>
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<a class="anchor" name="7e723bcbf36890f51805d8c373198ded"></a><!-- doxytag: member="Wt::Ext::ComboBox::setPageSize" ref="7e723bcbf36890f51805d8c373198ded" args="(int pageSize)" -->
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<td class="memname">void Wt::Ext::ComboBox::setPageSize </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>pageSize</em> </td>
<td> ) </td>
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<p>
Configure a page size to show matching values one page at a time.
<p>
At most <em>pageSize</em> matches will be shown at the same time in the combo-box.<p>
The default value is 0 (no paging).
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<a class="anchor" name="8cbea60f93ad91387200a3e49e33eaf0"></a><!-- doxytag: member="Wt::Ext::ComboBox::setDataLocation" ref="8cbea60f93ad91387200a3e49e33eaf0" args="(DataLocation dataLocation)" -->
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<td class="memname">void Wt::Ext::ComboBox::setDataLocation </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__ext.html#g5bc908c6e6aa90646cca1276d68cb2b2">DataLocation</a> </td>
<td class="paramname"> <em>dataLocation</em> </td>
<td> ) </td>
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<p>
Configure the location of the data for the combo-box.
<p>
When a ClientSide data location is specified, all data for the combo-box is downloaded when the combo-box is created. Using a ServerSide data location, data is downloaded to the client only when needed.<p>
The defualt value is ClientSide.
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<a class="anchor" name="48b20b2d00b523a28e2c1bd0a1a9bfcd"></a><!-- doxytag: member="Wt::Ext::ComboBox::refresh" ref="48b20b2d00b523a28e2c1bd0a1a9bfcd" args="()" -->
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<td class="memname">void Wt::Ext::ComboBox::refresh </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Refresh the widget.
<p>
The refresh method is invoked when the locale is changed using <a class="el" href="classWt_1_1WApplication.html#5c9cc1350019d69f154a2b44cdaf2596" title="Changes the locale.">WApplication::setLocale()</a> or when the user hit the refresh button.<p>
The widget must actualize its contents in response.
<p>Reimplemented from <a class="el" href="classWt_1_1Ext_1_1FormField.html#0ac56f725de8a68fd7931b9319286485">Wt::Ext::FormField</a>.</p>
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