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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="classWt_1_1WTreeView.html">WTreeView</a>
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<h1>Wt::WTreeView Class Reference<br>
<small>
[<a class="el" href="group__modelview.html">Model/view system</a>]</small>
</h1><!-- doxytag: class="Wt::WTreeView" --><!-- doxytag: inherits="Wt::WAbstractItemView" -->A view class that displays a model as a tree or tree table.
<a href="#_details">More...</a>
<p>
<code>#include <Wt/WTreeView></code>
<p>
<div class="dynheader">
Inheritance diagram for Wt::WTreeView:</div>
<div class="dynsection">
<p><center><img src="classWt_1_1WTreeView__inherit__graph.png" border="0" usemap="#Wt_1_1WTreeView__inherit__map" alt="Inheritance graph"></center>
<map name="Wt_1_1WTreeView__inherit__map">
<area shape="rect" href="classWt_1_1WAbstractItemView.html" title="An abstract base class for item views." alt="" coords="5,229,165,256"><area shape="rect" href="classWt_1_1WCompositeWidget.html" title="A widget that hides the implementation of composite widgets." alt="" coords="5,155,165,181"><area shape="rect" href="classWt_1_1WWidget.html" title="The abstract base class for a user-interface component." alt="" coords="37,80,133,107"><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="37,5,133,32"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>
<p>
<a href="classWt_1_1WTreeView-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="a6555aa2d53557340824faa314b318f2"></a><!-- doxytag: member="Wt::WTreeView::WTreeView" ref="a6555aa2d53557340824faa314b318f2" args="(WContainerWidget *parent=0)" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#a6555aa2d53557340824faa314b318f2">WTreeView</a> (<a class="el" href="classWt_1_1WContainerWidget.html">WContainerWidget</a> *parent=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a new tree view. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="3b361f93a9937accae2303ebda6b561f"></a><!-- doxytag: member="Wt::WTreeView::~WTreeView" ref="3b361f93a9937accae2303ebda6b561f" args="()" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#3b361f93a9937accae2303ebda6b561f">~WTreeView</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <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_1WTreeView.html#d3dae955c9012df8e368dadd1e8a8c75">setRootIndex</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &rootIndex)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the root index. <a href="#d3dae955c9012df8e368dadd1e8a8c75"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#b23b53eab9aebe8aef5d4936fb997aae">rootIndex</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the root index. <a href="#b23b53eab9aebe8aef5d4936fb997aae"></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_1WTreeView.html#8b8bfc22f30f0edfe8fe2de37a5fefc4">setColumnFormat</a> (int column, const <a class="el" href="classWt_1_1WString.html">WString</a> &format)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the column format string (<b>deprecated</b>). <a href="#8b8bfc22f30f0edfe8fe2de37a5fefc4"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classWt_1_1WString.html">WString</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#ab731f1046a7c0b602678171af9dc33e">columnFormat</a> (int column) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the column format string (<b>deprecated</b>). <a href="#ab731f1046a7c0b602678171af9dc33e"></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_1WTreeView.html#49566dd5cc8d1d0d95bad4783dd4e11a">setExpanded</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &, bool expanded)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Expands or collapses a node. <a href="#49566dd5cc8d1d0d95bad4783dd4e11a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#48eac450ec46ac1eea41822bfd227e9b">isExpanded</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &index) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether a node is expanded. <a href="#48eac450ec46ac1eea41822bfd227e9b"></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_1WTreeView.html#be1b839fc999634806df030301422411">collapse</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &index)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Collapses a node. <a href="#be1b839fc999634806df030301422411"></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_1WTreeView.html#03cd862e9c5dbbfbc126ac627b48592a">expand</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &index)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Expands a node. <a href="#03cd862e9c5dbbfbc126ac627b48592a"></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_1WTreeView.html#dd40d3e05352ae094f6fe2b9c879c2c7">expandToDepth</a> (int depth)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Expands all nodes to a depth. <a href="#dd40d3e05352ae094f6fe2b9c879c2c7"></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_1WTreeView.html#48f74194ae6bd63c08a6ff76ecb3e39c">setAlternatingRowColors</a> (bool enable)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets if alternating row colors are to be used. Configure whether rows get an alternating background color. These are implemented by using a background image on the root node, like:. <a href="#48f74194ae6bd63c08a6ff76ecb3e39c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#0d681bab3b32204d64b7902c5bce8f2b">alternatingRowColors</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether alternating row colors are used. <a href="#0d681bab3b32204d64b7902c5bce8f2b"></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_1WTreeView.html#ef8576ebdf2089edc259362a15e2f750">setRootIsDecorated</a> (bool show)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets whether toplevel items are decorated. <a href="#ef8576ebdf2089edc259362a15e2f750"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#c6e70d3de6623882f70219934d5f8253">rootIsDecorated</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether toplevel items are decorated. <a href="#c6e70d3de6623882f70219934d5f8253"></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_1WTreeView.html#c6d50ab57d086e67a2463f8a6a43e605">setColumn1Fixed</a> (bool enable)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Configures whether horizontal scrolling includes the first column. <a href="#c6d50ab57d086e67a2463f8a6a43e605"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#403dade7876fdd7e44600738660e17f8">column1Fixed</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether horizontal scrolling includes the first column. <a href="#403dade7876fdd7e44600738660e17f8"></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_1WTreeView.html#482314306c8404d7ed941fd986e32623">resize</a> (const <a class="el" href="classWt_1_1WLength.html">WLength</a> &width, const <a class="el" href="classWt_1_1WLength.html">WLength</a> &height)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Resizes the widget. <a href="#482314306c8404d7ed941fd986e32623"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classWt_1_1Signal.html">Signal</a>< <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> > & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#8d014f2cd6637f5f842d7fe2fff00418">collapsed</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Signal emitted when a node is collapsed. <a href="#8d014f2cd6637f5f842d7fe2fff00418"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classWt_1_1Signal.html">Signal</a>< <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> > & </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#96586671660b0e81cc2ae99fff284909">expanded</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Signal emitted when a node is expanded. <a href="#96586671660b0e81cc2ae99fff284909"></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_1WTreeView.html#390300f766472476e6a0df5aefaa2ef0">setModel</a> (<a class="el" href="classWt_1_1WAbstractItemModel.html">WAbstractItemModel</a> *model)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the model. <a href="#390300f766472476e6a0df5aefaa2ef0"></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_1WTreeView.html#33ba5111945bc0ec4745a536d52adec5">setColumnWidth</a> (int column, const <a class="el" href="classWt_1_1WLength.html">WLength</a> &width)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the column width. <a href="#33ba5111945bc0ec4745a536d52adec5"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="classWt_1_1WLength.html">WLength</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#362478c3c72d50b12fb28e6167831688">columnWidth</a> (int column) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the column width. <a href="#362478c3c72d50b12fb28e6167831688"></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_1WTreeView.html#849f805206bd1bc83e6bc411f208031d">setRowHeight</a> (const <a class="el" href="classWt_1_1WLength.html">WLength</a> &rowHeight)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the row height. <a href="#849f805206bd1bc83e6bc411f208031d"></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_1WTreeView.html#2367f47b0c80ec909d8e4d7626955a83">setHeaderHeight</a> (const <a class="el" href="classWt_1_1WLength.html">WLength</a> &height, bool multiLine=false)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the header height. <a href="#2367f47b0c80ec909d8e4d7626955a83"></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_1WTreeView.html#c3362a9f4ee26be8603a53661a5dcf32">setColumnAlignment</a> (int column, <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> alignment)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the content alignment for a column. <a href="#c3362a9f4ee26be8603a53661a5dcf32"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#637cefec32545eae957ee29a6ff54db6">columnAlignment</a> (int column) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the content alignment for a column. <a href="#637cefec32545eae957ee29a6ff54db6"></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_1WTreeView.html#f51c40dde539c64396fcf4735aa54a8d">setHeaderAlignment</a> (int column, <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> alignment)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the header alignment for a column. <a href="#f51c40dde539c64396fcf4735aa54a8d"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1WTreeView.html#2daf20310ac763199d88ff73ead8b856">headerAlignment</a> (int column) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the header alignment for a column. <a href="#2daf20310ac763199d88ff73ead8b856"></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_1WTreeView.html#dba2dc39faa8d427e8adb241b067ebf2">setColumnBorder</a> (const <a class="el" href="classWt_1_1WColor.html">WColor</a> &color)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the column border color. <a href="#dba2dc39faa8d427e8adb241b067ebf2"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Protected Member Functions</h2></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_1WTreeView.html#11f8eb2390ce4585b99344e540fef8b1">enableAjax</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Progresses to an Ajax-enabled widget. <a href="#11f8eb2390ce4585b99344e540fef8b1"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A view class that displays a model as a tree or tree table.
<p>
The view displays data from a <a class="el" href="classWt_1_1WAbstractItemModel.html" title="An abstract model for use with Wt's view classes.">WAbstractItemModel</a> in a tree or tree table. It provides incremental rendering, allowing the display of data models of any size efficiently, without excessive use of client- or serverside resources. Data of all predefined roles is displayed (see also ItemDataRole), including text, icons, checkboxes, and tooltips .<p>
By default, all but the first columns are given a width of 150px, and the first column takes the remaining size. <b>Note that this may have as consequence that the first column's size is reduced to 0.</b> Column widths of all columns, including the first column, can be set through the API method <a class="el" href="classWt_1_1WTreeView.html#33ba5111945bc0ec4745a536d52adec5" title="Sets the column width.">setColumnWidth()</a>, and also by the user using handles provided in the header.<p>
Optionally, the treeview may be configured so that the first column is always visible while scrolling through the other columns, which may be convenient if you wish to display a model with many columns. Use <a class="el" href="classWt_1_1WTreeView.html#c6d50ab57d086e67a2463f8a6a43e605" title="Configures whether horizontal scrolling includes the first column.">setColumn1Fixed()</a> to enable this behaviour.<p>
If the model supports sorting (<a class="el" href="classWt_1_1WAbstractItemModel.html#133931424d4daa8422bcdea911cda713" title="Sorts the model according to a particular column.">WAbstractItemModel::sort()</a>), such as the <a class="el" href="classWt_1_1WStandardItemModel.html" title="A standard data model, which stores its data in memory.">WStandardItemModel</a>, then you can enable sorting buttons in the header, using <a class="el" href="classWt_1_1WAbstractItemView.html#e1c86a0f37f97f63aed3b00fd8ffad7c" title="Enables or disables sorting for all columns.">setSortingEnabled()</a>.<p>
You can allow selection on row or item level (using <a class="el" href="classWt_1_1WAbstractItemView.html#d59b47cf9a1c5a65c5adc3e1900ceb5c" title="Changes the selection behaviour.">setSelectionBehavior()</a>), and selection of single or multiple items (using <a class="el" href="classWt_1_1WAbstractItemView.html#f6fcd9761e2f7a3b497d3563c849d320" title="Sets the selection mode.">setSelectionMode()</a>), and listen for changes in the selection using the <a class="el" href="classWt_1_1WAbstractItemView.html#9ed7710caa82e030db59020f4add4025" title="Signal emitted when the selection is changed.">selectionChanged()</a> signal.<p>
You may enable drag & drop support for this view, whith awareness of the items in the model. When enabling dragging (see <a class="el" href="classWt_1_1WAbstractItemView.html#0ca99b835708d990b90000917045738e" title="Enables the selection to be dragged (drag & drop).">setDragEnabled()</a>), the current selection may be dragged, but only when all items in the selection indicate support for dragging (controlled by the <a class="el" href="group__modelview.html#gg1d77c4de293aebfacbdde124de06b8b02b0edddfd15d67a84723c9043479ced1">ItemIsDragEnabled</a> flag), and if the model indicates a mime-type (controlled by <a class="el" href="classWt_1_1WAbstractItemModel.html#4c62d2cc18d133d7926a91b4f2eebe62" title="Returns a mime-type for dragging a set of indexes.">WAbstractItemModel::mimeType()</a>). Likewise, by enabling support for dropping (see <a class="el" href="classWt_1_1WAbstractItemView.html#1eda46c8e9a21af7f6281e7096af8fbe" title="Enables drop operations (drag & drop).">setDropsEnabled()</a>), the treeview may receive a drop event on a particular item, at least if the item indicates support for drops (controlled by the <a class="el" href="group__modelview.html#gg1d77c4de293aebfacbdde124de06b8b095d23063251001545d4bfab1308879a3">ItemIsDropEnabled</a> flag).<p>
You may also react to mouse click events on any item, by connecting to one of the <a class="el" href="classWt_1_1WAbstractItemView.html#3b72d5f8e5b0afdea83e224354d3e91b" title="Signal emitted when an item is clicked.">clicked()</a> or <a class="el" href="classWt_1_1WAbstractItemView.html#14ac099f58621d66834aa5674ea8ecb5" title="Signal emitted when an item is double clicked.">doubleClicked()</a> signals.<p>
Usage example: <div class="fragment"><pre class="fragment"> <span class="comment">// WTreeView will display the data of a model</span>
<a class="code" href="classWt_1_1WAbstractItemModel.html" title="An abstract model for use with Wt&#39;s view classes.">Wt::WAbstractItemModel</a> *model = ...
<span class="comment">// Create the WTreeView</span>
<a class="code" href="classWt_1_1WTreeView.html" title="A view class that displays a model as a tree or tree table.">Wt::WTreeView</a> *gitView = <span class="keyword">new</span> <a class="code" href="classWt_1_1WTreeView.html" title="A view class that displays a model as a tree or tree table.">Wt::WTreeView</a>();
gitView-><a class="code" href="classWt_1_1WTreeView.html#482314306c8404d7ed941fd986e32623" title="Resizes the widget.">resize</a>(300, <a class="code" href="classWt_1_1WLength.html#0cf39ca4225776879d56ade60320c31a" title="An &#39;auto&#39; length.">Wt::WLength::Auto</a>);
gitView-><a class="code" href="classWt_1_1WAbstractItemView.html#e1c86a0f37f97f63aed3b00fd8ffad7c" title="Enables or disables sorting for all columns.">setSortingEnabled</a>(<span class="keyword">false</span>);
gitView-><a class="code" href="classWt_1_1WTreeView.html#390300f766472476e6a0df5aefaa2ef0" title="Sets the model.">setModel</a>(model);
gitView-><a class="code" href="classWt_1_1WAbstractItemView.html#f6fcd9761e2f7a3b497d3563c849d320" title="Sets the selection mode.">setSelectionMode</a>(<a class="code" href="namespaceWt.html#74b3f7eb1689a3cbf0ea514ffd20bccc4fd3c5ba6ce5289a1e732d85f002882a" title="Single selection only.">SingleSelection</a>);
</pre></div><p>
<h3>CSS</h3>
<p>
The treeview is styled by the current CSS theme. The look can be overridden using the <code>Wt-treeview</code> CSS class and the following selectors.<p>
Selectors that apply to the header: <div class="fragment"><pre class="fragment">
.Wt-treeview .Wt-headerdiv : header (background)
.Wt-treeview .Wt-header .Wt-label : header label
.Wt-treeview .Wt-tv-rh : column resize handle
.Wt-treeview .Wt-tv-sh-none : column sort handle, no sorting
.Wt-treeview .Wt-tv-sh-up : column sort handle, sort up
.Wt-treeview .Wt-tv-sh-down : column sort handle, sort down
</pre></div> Selectors that apply to the tree decoration: <div class="fragment"><pre class="fragment">
.Wt-treeview .Wt-trunk : vertical line, trunk
.Wt-treeview .Wt-end : vertical line, last item
.Wt-treeview .Wt-collapse : collapse icon
.Wt-treeview .Wt-expand : expand icon
.Wt-treeview .Wt-noexpand : leaf icon
</pre></div> Selectors that apply to the table contents: <div class="fragment"><pre class="fragment">
.Wt-treeview .Wt-spacer : spacer for non-loaded content
.Wt-treeview .Wt-selected : selected item
.Wt-treeview .Wt-drop-site : possible drop site
</pre></div> Selectors that apply to the table borders (which must be 1 pixel wide) <div class="fragment"><pre class="fragment">
.Wt-treeview .Wt-tv-row .Wt-tv-c : border-right property of cells
.Wt-treeview .Wt-header .Wt-tv-row,
.Wt-treeview .Wt-tv-node .Wt-tv-row : border-left property of cells
</pre></div><p>
A snapshot of the <a class="el" href="classWt_1_1WTreeView.html" title="A view class that displays a model as a tree or tree table.">WTreeView</a>: <div align="center">
<img src="WTreeView-default-1.png" alt="WTreeView-default-1.png">
<p><strong>WTreeView example (default)</strong></p></div>
<div align="center">
<img src="WTreeView-polished-1.png" alt="WTreeView-polished-1.png">
<p><strong>WTreeView example (polished)</strong></p></div>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="d3dae955c9012df8e368dadd1e8a8c75"></a><!-- doxytag: member="Wt::WTreeView::setRootIndex" ref="d3dae955c9012df8e368dadd1e8a8c75" args="(const WModelIndex &rootIndex)" -->
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<td class="memname">void Wt::WTreeView::setRootIndex </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td>
<td class="paramname"> <em>rootIndex</em> </td>
<td> ) </td>
<td></td>
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<div class="memdoc">
<p>
Sets the root index.
<p>
The root index is the model index that is considered the root node. This node itself is not rendered, but all its children are the top level nodes.<p>
The default value is WModelIndex(), corresponding to the invisible root.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#390300f766472476e6a0df5aefaa2ef0" title="Sets the model.">setModel()</a> </dd></dl>
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</div><p>
<a class="anchor" name="b23b53eab9aebe8aef5d4936fb997aae"></a><!-- doxytag: member="Wt::WTreeView::rootIndex" ref="b23b53eab9aebe8aef5d4936fb997aae" args="() const " -->
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<td class="memname">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a>& Wt::WTreeView::rootIndex </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<p>
Returns the root index.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#d3dae955c9012df8e368dadd1e8a8c75" title="Sets the root index.">setRootIndex()</a> </dd></dl>
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</div><p>
<a class="anchor" name="8b8bfc22f30f0edfe8fe2de37a5fefc4"></a><!-- doxytag: member="Wt::WTreeView::setColumnFormat" ref="8b8bfc22f30f0edfe8fe2de37a5fefc4" args="(int column, const WString &format)" -->
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<td class="memname">void Wt::WTreeView::setColumnFormat </td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>column</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classWt_1_1WString.html">WString</a> & </td>
<td class="paramname"> <em>format</em></td><td> </td>
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<td></td>
<td>)</td>
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<p>
Sets the column format string (<b>deprecated</b>).
<p>
The DisplayRole data for that column is converted to a string using <a class="el" href="classWt_1_1WAbstractItemModel.html#86307ac8fa69203e5de72d7c08197fbc" title="Interpret a boost::any as a string value.">asString()</a>, with the given format.<p>
The default value is "".<p>
<dl compact><dt><b><a class="el" href="deprecated.html#_deprecated000023">Deprecated:</a></b></dt><dd>use <a class="el" href="classWt_1_1WAbstractItemView.html#8d3d37b13cc684248e06700c40dd7672" title="Returns the delegate that was set for a column.">itemDelegateForColumn()</a> to customize the formatting. This method will create a new <a class="el" href="classWt_1_1WItemDelegate.html" title="Standard delegate class for rendering a view item.">WItemDelegate</a> for the column, and configure its format. </dd></dl>
</div>
</div><p>
<a class="anchor" name="ab731f1046a7c0b602678171af9dc33e"></a><!-- doxytag: member="Wt::WTreeView::columnFormat" ref="ab731f1046a7c0b602678171af9dc33e" args="(int column) const " -->
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<td class="memname"><a class="el" href="classWt_1_1WString.html">WString</a> Wt::WTreeView::columnFormat </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>column</em> </td>
<td> ) </td>
<td> const</td>
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<div class="memdoc">
<p>
Returns the column format string (<b>deprecated</b>).
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#8b8bfc22f30f0edfe8fe2de37a5fefc4" title="Sets the column format string (deprecated).">setColumnFormat()</a></dd></dl>
<dl compact><dt><b><a class="el" href="deprecated.html#_deprecated000024">Deprecated:</a></b></dt><dd>use <a class="el" href="classWt_1_1WAbstractItemView.html#8d3d37b13cc684248e06700c40dd7672" title="Returns the delegate that was set for a column.">itemDelegateForColumn()</a> to customize the formatting. This method will try to cast the <a class="el" href="classWt_1_1WAbstractItemView.html#8d3d37b13cc684248e06700c40dd7672" title="Returns the delegate that was set for a column.">itemDelegateForColumn()</a> to a <a class="el" href="classWt_1_1WItemDelegate.html" title="Standard delegate class for rendering a view item.">WItemDelegate</a> and return the format. </dd></dl>
</div>
</div><p>
<a class="anchor" name="49566dd5cc8d1d0d95bad4783dd4e11a"></a><!-- doxytag: member="Wt::WTreeView::setExpanded" ref="49566dd5cc8d1d0d95bad4783dd4e11a" args="(const WModelIndex &, bool expanded)" -->
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<td class="memname">void Wt::WTreeView::setExpanded </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td>
<td class="paramname">, </td>
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<td class="paramkey"></td>
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<td class="paramtype">bool </td>
<td class="paramname"> <em>expanded</em></td><td> </td>
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<td>)</td>
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<p>
Expands or collapses a node.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#03cd862e9c5dbbfbc126ac627b48592a" title="Expands a node.">expand()</a>, <a class="el" href="classWt_1_1WTreeView.html#be1b839fc999634806df030301422411" title="Collapses a node.">collapse()</a> </dd></dl>
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</div><p>
<a class="anchor" name="48eac450ec46ac1eea41822bfd227e9b"></a><!-- doxytag: member="Wt::WTreeView::isExpanded" ref="48eac450ec46ac1eea41822bfd227e9b" args="(const WModelIndex &index) const " -->
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<td class="memname">bool Wt::WTreeView::isExpanded </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td>
<td class="paramname"> <em>index</em> </td>
<td> ) </td>
<td> const</td>
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<p>
Returns whether a node is expanded.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#49566dd5cc8d1d0d95bad4783dd4e11a" title="Expands or collapses a node.">setExpanded()</a> </dd></dl>
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<a class="anchor" name="be1b839fc999634806df030301422411"></a><!-- doxytag: member="Wt::WTreeView::collapse" ref="be1b839fc999634806df030301422411" args="(const WModelIndex &index)" -->
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<td class="memname">void Wt::WTreeView::collapse </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td>
<td class="paramname"> <em>index</em> </td>
<td> ) </td>
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<p>
Collapses a node.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#49566dd5cc8d1d0d95bad4783dd4e11a" title="Expands or collapses a node.">setExpanded()</a>, <a class="el" href="classWt_1_1WTreeView.html#03cd862e9c5dbbfbc126ac627b48592a" title="Expands a node.">expand()</a> </dd></dl>
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<a class="anchor" name="03cd862e9c5dbbfbc126ac627b48592a"></a><!-- doxytag: member="Wt::WTreeView::expand" ref="03cd862e9c5dbbfbc126ac627b48592a" args="(const WModelIndex &index)" -->
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<td class="memname">void Wt::WTreeView::expand </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> & </td>
<td class="paramname"> <em>index</em> </td>
<td> ) </td>
<td></td>
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<p>
Expands a node.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#49566dd5cc8d1d0d95bad4783dd4e11a" title="Expands or collapses a node.">setExpanded()</a>, <a class="el" href="classWt_1_1WTreeView.html#be1b839fc999634806df030301422411" title="Collapses a node.">collapse()</a> </dd></dl>
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<a class="anchor" name="dd40d3e05352ae094f6fe2b9c879c2c7"></a><!-- doxytag: member="Wt::WTreeView::expandToDepth" ref="dd40d3e05352ae094f6fe2b9c879c2c7" args="(int depth)" -->
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<td class="memname">void Wt::WTreeView::expandToDepth </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>depth</em> </td>
<td> ) </td>
<td></td>
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<p>
Expands all nodes to a depth.
<p>
Expands all nodes to the given <code>depth</code>. A depth of 1 corresponds to the top level nodes.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#03cd862e9c5dbbfbc126ac627b48592a" title="Expands a node.">expand()</a> </dd></dl>
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<a class="anchor" name="48f74194ae6bd63c08a6ff76ecb3e39c"></a><!-- doxytag: member="Wt::WTreeView::setAlternatingRowColors" ref="48f74194ae6bd63c08a6ff76ecb3e39c" args="(bool enable)" -->
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<td class="memname">virtual void Wt::WTreeView::setAlternatingRowColors </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>enable</em> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>
Sets if alternating row colors are to be used. Configure whether rows get an alternating background color. These are implemented by using a background image on the root node, like:.
<p>
<div align="center">
<img src="stripe-30px.gif" alt="stripe-30px.gif">
<p><strong>Sample image use for alternating row colors</strong></p></div>
The image that is used is <em>resourcesURL</em>"/stripes/stripe-<i>n</i>px.gif", where <code>n</code> is the row height. In the resource folder are images pregenerated for one color and row sizes from 10 to 30px.<p>
The default value is <code>false</code>.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd>setImagePack() </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#1ce7b3a80265224ddc7f204fc54d1803">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="0d681bab3b32204d64b7902c5bce8f2b"></a><!-- doxytag: member="Wt::WTreeView::alternatingRowColors" ref="0d681bab3b32204d64b7902c5bce8f2b" args="() const " -->
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<td class="memname">virtual bool Wt::WTreeView::alternatingRowColors </td>
<td>(</td>
<td class="paramname"> </td>
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<td> const<code> [inline, virtual]</code></td>
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<p>
Returns whether alternating row colors are used.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#48f74194ae6bd63c08a6ff76ecb3e39c" title="Sets if alternating row colors are to be used. Configure whether rows get an alternating...">setAlternatingRowColors()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#593836d5c5ebc6f241094afe230c2cc2">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="ef8576ebdf2089edc259362a15e2f750"></a><!-- doxytag: member="Wt::WTreeView::setRootIsDecorated" ref="ef8576ebdf2089edc259362a15e2f750" args="(bool show)" -->
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<td class="memname">void Wt::WTreeView::setRootIsDecorated </td>
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<td class="paramtype">bool </td>
<td class="paramname"> <em>show</em> </td>
<td> ) </td>
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<p>
Sets whether toplevel items are decorated.
<p>
By default, top level nodes have expand/collapse and other lines to display their linkage and offspring, like any node.<p>
By setting <code>show</code> to <code>false</code>, you can hide these decorations for root nodes, and in this way mimic a plain list.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Ext_1_1TableView.html" title="A widget that displays data in a table.">Ext::TableView</a> </dd></dl>
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<a class="anchor" name="c6e70d3de6623882f70219934d5f8253"></a><!-- doxytag: member="Wt::WTreeView::rootIsDecorated" ref="c6e70d3de6623882f70219934d5f8253" args="() const " -->
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<td class="memname">bool Wt::WTreeView::rootIsDecorated </td>
<td>(</td>
<td class="paramname"> </td>
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<td> const<code> [inline]</code></td>
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<p>
Returns whether toplevel items are decorated.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#ef8576ebdf2089edc259362a15e2f750" title="Sets whether toplevel items are decorated.">setRootIsDecorated()</a> </dd></dl>
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<a class="anchor" name="c6d50ab57d086e67a2463f8a6a43e605"></a><!-- doxytag: member="Wt::WTreeView::setColumn1Fixed" ref="c6d50ab57d086e67a2463f8a6a43e605" args="(bool enable)" -->
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<td class="memname">void Wt::WTreeView::setColumn1Fixed </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"> <em>enable</em> </td>
<td> ) </td>
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<p>
Configures whether horizontal scrolling includes the first column.
<p>
To display a model with many columns, this option allows you to keep the first column fixed while scrolling through the other columns of the model.<p>
The default value is <code>false</code>.<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd>Currently, you must set this option before any other manipulation of a newly created treeview, and only <code>enable</code> = <code>true</code> is supported. </dd></dl>
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<a class="anchor" name="403dade7876fdd7e44600738660e17f8"></a><!-- doxytag: member="Wt::WTreeView::column1Fixed" ref="403dade7876fdd7e44600738660e17f8" args="() const " -->
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<td class="memname">bool Wt::WTreeView::column1Fixed </td>
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<td> const<code> [inline]</code></td>
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<p>
Returns whether horizontal scrolling includes the first column.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#c6d50ab57d086e67a2463f8a6a43e605" title="Configures whether horizontal scrolling includes the first column.">setColumn1Fixed()</a> </dd></dl>
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<a class="anchor" name="482314306c8404d7ed941fd986e32623"></a><!-- doxytag: member="Wt::WTreeView::resize" ref="482314306c8404d7ed941fd986e32623" args="(const WLength &width, const WLength &height)" -->
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<td class="memname">virtual void Wt::WTreeView::resize </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WLength.html">WLength</a> & </td>
<td class="paramname"> <em>width</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classWt_1_1WLength.html">WLength</a> & </td>
<td class="paramname"> <em>height</em></td><td> </td>
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<p>
Resizes the widget.
<p>
Specify a new size for this widget, by specifying width and height. By default a widget has automatic width and height, see <a class="el" href="classWt_1_1WLength.html#b4c9733029342fdbc1dee34a523ee40d" title="Returns whether the ength is 'auto'.">WLength::isAuto()</a>.<p>
This applies to CSS-based layout, and only <a class="el" href="classWt_1_1WCompositeWidget.html#ed7eec7b9a562b84fdb97f68f37ce694">block</a> widgets can be given a size reliably.<p>
When inserted in a layout manager, the widget may be informed about its current size using <a class="el" href="classWt_1_1WWidget.html#4f83592912a7f8fa4fd35dadde78ee74" title="Sets the widget to be aware of its size set by a layout manager.">setLayoutSizeAware()</a>. If you have defined a "wtResize()" JavaScript method for the widget, then this method will also be called. operation.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WCompositeWidget.html#3358bb9a93e5c7999c4f6d39d9880c8f" title="Returns the width.">width()</a>, <a class="el" href="classWt_1_1WCompositeWidget.html#b20c559ba960c80be16572293df7fd96" title="Returns the height.">height()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WCompositeWidget.html#976e94e38c7a9cc0f212e13a9792912e">Wt::WCompositeWidget</a>.</p>
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<a class="anchor" name="8d014f2cd6637f5f842d7fe2fff00418"></a><!-- doxytag: member="Wt::WTreeView::collapsed" ref="8d014f2cd6637f5f842d7fe2fff00418" args="()" -->
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<td class="memname"><a class="el" href="classWt_1_1Signal.html">Signal</a><<a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a>>& Wt::WTreeView::collapsed </td>
<td>(</td>
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<td> ) </td>
<td><code> [inline]</code></td>
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<p>
Signal emitted when a node is collapsed.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#49566dd5cc8d1d0d95bad4783dd4e11a" title="Expands or collapses a node.">setExpanded()</a>, <a class="el" href="classWt_1_1WTreeView.html#96586671660b0e81cc2ae99fff284909" title="Signal emitted when a node is expanded.">expanded()</a> </dd></dl>
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<a class="anchor" name="96586671660b0e81cc2ae99fff284909"></a><!-- doxytag: member="Wt::WTreeView::expanded" ref="96586671660b0e81cc2ae99fff284909" args="()" -->
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<td class="memname"><a class="el" href="classWt_1_1Signal.html">Signal</a><<a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a>>& Wt::WTreeView::expanded </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [inline]</code></td>
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<p>
Signal emitted when a node is expanded.
<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#49566dd5cc8d1d0d95bad4783dd4e11a" title="Expands or collapses a node.">setExpanded()</a>, <a class="el" href="classWt_1_1WTreeView.html#8d014f2cd6637f5f842d7fe2fff00418" title="Signal emitted when a node is collapsed.">collapsed()</a> </dd></dl>
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<a class="anchor" name="390300f766472476e6a0df5aefaa2ef0"></a><!-- doxytag: member="Wt::WTreeView::setModel" ref="390300f766472476e6a0df5aefaa2ef0" args="(WAbstractItemModel *model)" -->
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<td class="memname">virtual void Wt::WTreeView::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>
<td><code> [virtual]</code></td>
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<p>
Sets the model.
<p>
The view will render the data in the given <code>model</code>. Changes to the model are reflected in the view.<p>
The initial model is <code>0</code>.<p>
Ownership of the model is not transferred (and thus the previously set model is not deleted).<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#d3dae955c9012df8e368dadd1e8a8c75" title="Sets the root index.">setRootIndex()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WAbstractItemView.html#b6a137595a1c6ddb9406d328a3cbf261">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="33ba5111945bc0ec4745a536d52adec5"></a><!-- doxytag: member="Wt::WTreeView::setColumnWidth" ref="33ba5111945bc0ec4745a536d52adec5" args="(int column, const WLength &width)" -->
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<td class="memname">virtual void Wt::WTreeView::setColumnWidth </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>column</em>, </td>
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<td></td>
<td class="paramtype">const <a class="el" href="classWt_1_1WLength.html">WLength</a> & </td>
<td class="paramname"> <em>width</em></td><td> </td>
</tr>
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<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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<p>
Sets the column width.
<p>
For a model with <a class="el" href="classWt_1_1WAbstractItemModel.html#bcf7912a95a0a60f8e9b1c37d30b8383">columnCount()</a> == <code>N</code>, the initial width of columns 1..<code>N</code> is set to 150 pixels, and column 0 will take all remaining space.<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd>The actual space occupied by each column is the column width augmented by 7 pixels for internal padding and a border.</dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#849f805206bd1bc83e6bc411f208031d" title="Sets the row height.">setRowHeight()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#a80794ca5438e2b9971e8f85919353fd">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="362478c3c72d50b12fb28e6167831688"></a><!-- doxytag: member="Wt::WTreeView::columnWidth" ref="362478c3c72d50b12fb28e6167831688" args="(int column) const " -->
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<td class="memname">virtual <a class="el" href="classWt_1_1WLength.html">WLength</a> Wt::WTreeView::columnWidth </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>column</em> </td>
<td> ) </td>
<td> const<code> [virtual]</code></td>
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<p>
Returns the column width.
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#33ba5111945bc0ec4745a536d52adec5" title="Sets the column width.">setColumnWidth()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#93541f2d346be1e3e8ea14d83e1120aa">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="849f805206bd1bc83e6bc411f208031d"></a><!-- doxytag: member="Wt::WTreeView::setRowHeight" ref="849f805206bd1bc83e6bc411f208031d" args="(const WLength &rowHeight)" -->
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<td class="memname">virtual void Wt::WTreeView::setRowHeight </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WLength.html">WLength</a> & </td>
<td class="paramname"> <em>rowHeight</em> </td>
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<td><code> [virtual]</code></td>
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<p>
Sets the row height.
<p>
The view assumes that all rows are of the same height. Use this method to set the height.<p>
The default value is 20 pixels.<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd>The height must be specified in <a class="el" href="classWt_1_1WLength.html#908caf5d6be7e244e24598e6d22cd4c00b1fa4c1bd7adb92e1a04d62b96d30ba" title="Pixel, relative to canvas resolution.">WLength::Pixel</a> units.</dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#33ba5111945bc0ec4745a536d52adec5" title="Sets the column width.">setColumnWidth()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#ec32b316a7c535300aa8d2f1ff26d72c">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="2367f47b0c80ec909d8e4d7626955a83"></a><!-- doxytag: member="Wt::WTreeView::setHeaderHeight" ref="2367f47b0c80ec909d8e4d7626955a83" args="(const WLength &height, bool multiLine=false)" -->
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<td>(</td>
<td class="paramtype">const <a class="el" href="classWt_1_1WLength.html">WLength</a> & </td>
<td class="paramname"> <em>height</em>, </td>
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<p>
Sets the header height.
<p>
Use this method to change the header height. You may also enable the use of multi-line headers. By default, the header text is a single line, that is centered vertically.<p>
The default value is 20 pixels.
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#fb02f8ce5317b961741bc7c544645653">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="c3362a9f4ee26be8603a53661a5dcf32"></a><!-- doxytag: member="Wt::WTreeView::setColumnAlignment" ref="c3362a9f4ee26be8603a53661a5dcf32" args="(int column, AlignmentFlag alignment)" -->
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<td>(</td>
<td class="paramtype">int </td>
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<td></td>
<td class="paramtype"><a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> </td>
<td class="paramname"> <em>alignment</em></td><td> </td>
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<p>
Sets the content alignment for a column.
<p>
The default value is <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143fd033ef69b45d0b75633be34168c9b606">AlignLeft</a>.<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd>For column 0, <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f121104cdbb5db77c7d038813a93998e5">AlignCenter</a> is currently not supported.</dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#f51c40dde539c64396fcf4735aa54a8d" title="Sets the header alignment for a column.">setHeaderAlignment()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#61cd01f6de2967db3fcc9ffd64e411ae">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="637cefec32545eae957ee29a6ff54db6"></a><!-- doxytag: member="Wt::WTreeView::columnAlignment" ref="637cefec32545eae957ee29a6ff54db6" args="(int column) const " -->
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<td class="memname">virtual <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> Wt::WTreeView::columnAlignment </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>column</em> </td>
<td> ) </td>
<td> const<code> [virtual]</code></td>
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<p>
Returns the content alignment for a column.
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#c3362a9f4ee26be8603a53661a5dcf32" title="Sets the content alignment for a column.">setColumnAlignment()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#d4e3d4b8ceb23d103a28a0c0faa216c2">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="f51c40dde539c64396fcf4735aa54a8d"></a><!-- doxytag: member="Wt::WTreeView::setHeaderAlignment" ref="f51c40dde539c64396fcf4735aa54a8d" args="(int column, AlignmentFlag alignment)" -->
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<td class="memname">virtual void Wt::WTreeView::setHeaderAlignment </td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>column</em>, </td>
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<td class="paramtype"><a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> </td>
<td class="paramname"> <em>alignment</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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Sets the header alignment for a column.
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The default value is <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143fd033ef69b45d0b75633be34168c9b606">AlignLeft</a>.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#c3362a9f4ee26be8603a53661a5dcf32" title="Sets the content alignment for a column.">setColumnAlignment()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#b4b3544161a7e037e8de7af192f8a03d">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="2daf20310ac763199d88ff73ead8b856"></a><!-- doxytag: member="Wt::WTreeView::headerAlignment" ref="2daf20310ac763199d88ff73ead8b856" args="(int column) const " -->
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<td class="memname">virtual <a class="el" href="namespaceWt.html#b8f772c69bc8180c31f9e4f4593b143f">AlignmentFlag</a> Wt::WTreeView::headerAlignment </td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>column</em> </td>
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<td> const<code> [virtual]</code></td>
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Returns the header alignment for a column.
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WTreeView.html#f51c40dde539c64396fcf4735aa54a8d" title="Sets the header alignment for a column.">setHeaderAlignment()</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#6e39f33083824acd1d07457113d14b00">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="dba2dc39faa8d427e8adb241b067ebf2"></a><!-- doxytag: member="Wt::WTreeView::setColumnBorder" ref="dba2dc39faa8d427e8adb241b067ebf2" args="(const WColor &color)" -->
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<td class="memname">virtual void Wt::WTreeView::setColumnBorder </td>
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<td class="paramtype">const <a class="el" href="classWt_1_1WColor.html">WColor</a> & </td>
<td class="paramname"> <em>color</em> </td>
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Sets the column border color.
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The default border color is white.
<p>Implements <a class="el" href="classWt_1_1WAbstractItemView.html#6b58e9040dfbe9547cb737c7d5e71e0f">Wt::WAbstractItemView</a>.</p>
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<a class="anchor" name="11f8eb2390ce4585b99344e540fef8b1"></a><!-- doxytag: member="Wt::WTreeView::enableAjax" ref="11f8eb2390ce4585b99344e540fef8b1" args="()" -->
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<td class="memname">virtual void Wt::WTreeView::enableAjax </td>
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Progresses to an Ajax-enabled widget.
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This method is called when the progressive bootstrap method is used, and support for AJAX has been detected. The default behavior will upgrade the widget's event handling to use AJAX instead of full page reloads, and propagate the call to its children.<p>
You may want to reimplement this method if you want to make changes to widget when AJAX is enabled. You should always call the base implementation.<p>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WApplication.html#78016406c4746c56b2c2ffce7c5e181f" title="Progresses to an Ajax-enabled user interface.">WApplication::enableAjax()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1WCompositeWidget.html#90e07c1bb6c48732ed4b5d98f91cfda0">Wt::WCompositeWidget</a>.</p>
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