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312 lines
20 KiB
HTML
312 lines
20 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>YUI Library Examples: TreeView Control: Treeview Node Selection and Checkbox Example</title>
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<link rel="stylesheet" type="text/css" href="../../assets/yui.css" >
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<style>
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/*Supplemental CSS for the YUI distribution*/
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#custom-doc { width: 95%; min-width: 950px; }
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#pagetitle {background-image: url(../../assets/bg_hd.gif);}
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</style>
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<link rel="stylesheet" type="text/css" href="../../assets/dpSyntaxHighlighter.css">
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<!--Script and CSS includes for YUI dependencies on this page-->
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<link rel="stylesheet" type="text/css" href="../../build/logger/assets/skins/sam/logger.css" />
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<link rel="stylesheet" type="text/css" href="../../build/treeview/assets/skins/sam/treeview.css" />
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<link rel="stylesheet" type="text/css" href="../../build/button/assets/skins/sam/button.css" />
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<script type="text/javascript" src="../../build/yuiloader/yuiloader-min.js"></script>
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<script type="text/javascript" src="../../build/event/event-min.js"></script>
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<script type="text/javascript" src="../../build/dom/dom-min.js"></script>
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<script type="text/javascript" src="../../build/logger/logger-min.js"></script>
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<script type="text/javascript" src="../../build/treeview/treeview-debug.js"></script>
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<script type="text/javascript" src="../../build/element/element-min.js"></script>
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<script type="text/javascript" src="../../build/button/button-min.js"></script>
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<!--begin custom header content for this example-->
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<!--Additional custom style rules for this example:-->
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<style type="text/css">
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.ygtvcheck0 { background: url(../treeview/assets/img/check/check0.gif) 0 0 no-repeat; width:16px; height:20px; float:left; cursor:pointer; }
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.ygtvcheck1 { background: url(../treeview/assets/img/check/check1.gif) 0 0 no-repeat; width:16px; height:20px; float:left; cursor:pointer; }
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.ygtvcheck2 { background: url(../treeview/assets/img/check/check2.gif) 0 0 no-repeat; width:16px; height:20px; float:left; cursor:pointer; }
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.ygtv-edit-TaskNode { width: 190px;}
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.ygtv-edit-TaskNode .ygtvcancel, .ygtv-edit-TextNode .ygtvok { border:none;}
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.ygtv-edit-TaskNode .ygtv-button-container { float: right;}
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.ygtv-edit-TaskNode .ygtv-input input{ width: 140px;}
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.whitebg {
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background-color:white;
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}
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</style>
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<!--end custom header content for this example-->
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<script type="text/javascript">
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//enable passthrough of errors from YUI Event:
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if ((typeof YAHOO !== "undefined") && (YAHOO.util) && (YAHOO.util.Event)) {
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YAHOO.util.Event.throwErrors = true;
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}
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</script>
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</head>
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<body id="yahoo-com" class="yui-skin-sam">
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<div id="custom-doc" class="yui-t2">
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<div id="hd">
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<div id="ygunav">
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<p><em><a href="http://developer.yahoo.com/yui/">YUI Library Home</a></em></p>
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<form action="http://search.yahoo.com/search" id="sitesearchform">
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<input name="vs" type="hidden" value="developer.yahoo.com">
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<input name="vs" type="hidden" value="yuiblog.com">
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<div id="sitesearch">
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<label for="searchinput">Site Search (YDN & YUIBlog): </label>
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<input type="text" id="searchinput" name="p">
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<input type="submit" value="Search" id="searchsubmit" class="ygbt">
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</div>
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</form> </div>
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<div id="ygma"><a href="../../"><img src="../../assets/yui.gif" border="0" height="38"></a></div>
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<div id="pagetitle"><h1>YUI Library Examples: TreeView Control: Treeview Node Selection and Checkbox Example</h1></div>
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</div>
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<div id="bd">
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<div id="yui-main">
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<div class="yui-b">
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<div class="yui-ge">
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<div class="yui-u first example">
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<div class="promo">
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<h1>TreeView Control: Treeview Node Selection and Checkbox Example</h1>
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<div class="exampleIntro">
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<p>In this simple example you can see how to do node selection in the
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<a href="http://developer.yahoo.com/yui/treeview/">TreeView Control</a>.</p>
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</div>
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<div class="example-container module ">
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<div class="hd exampleHd">
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<p class="newWindowButton yui-skin-sam"><!--<span id="newWindowLinkx"><span class="first-child">--><a href="tv_highlight_clean.html" target="_blank">View example in new window.</a><!--</span></span>-->
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</div> <div id="example-canvas" class="bd">
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<!--BEGIN SOURCE CODE FOR EXAMPLE =============================== -->
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<h3>Tree with highlight propagation and 'checkbox' skin</h3>
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<div id="treeDiv1" class="whitebg ygtv-checkbox"></div>
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<button id="logHilit">Log selected</button>
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<hr/>
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<h3>Tree with single node highlighting and simple skin</h3>
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<div id="treeDiv2" class="whitebg ygtv-highlight"></div>
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<script type="text/javascript">
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//global variable to allow console inspection of tree:
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var tree1, tree2;
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//anonymous function wraps the remainder of the logic:
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(function() {
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var makeBranch = function (parent,label) {
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label = label || '';
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var n = Math.random() * (6 - (label.length || 0));
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for (var i = 0;i < n;i++) {
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var tmpNode = new YAHOO.widget.TextNode('label' + label + '-' + i, parent, Math.random() > .5);
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makeBranch(tmpNode,label + '-' + i);
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}
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}
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var treeInit = function() {
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tree1 = new YAHOO.widget.TreeView("treeDiv1");
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makeBranch(tree1.getRoot());
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tree1.setNodesProperty('propagateHighlightUp',true);
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tree1.setNodesProperty('propagateHighlightDown',true);
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tree1.subscribe('clickEvent',tree1.onEventToggleHighlight);
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tree1.render();
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YAHOO.util.Event.on('logHilit','click',function() {
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var hiLit = tree1.getNodesByProperty('highlightState',1);
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if (YAHOO.lang.isNull(hiLit)) {
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YAHOO.log("None selected");
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} else {
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var labels = [];
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for (var i = 0; i < hiLit.length; i++) {
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labels.push(hiLit[i].label);
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}
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YAHOO.log("Highlighted nodes:\n" + labels.join("\n"), "info", "example");
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}
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});
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tree2 = new YAHOO.widget.TreeView("treeDiv2");
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makeBranch(tree2.getRoot());
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tree2.singleNodeHighlight = true;
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tree2.subscribe('clickEvent',tree2.onEventToggleHighlight);
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tree2.render();
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};
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//Add an onDOMReady handler to build the tree when the document is ready
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YAHOO.util.Event.onDOMReady(treeInit);
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})();
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</script>
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<!--END SOURCE CODE FOR EXAMPLE =============================== -->
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</div>
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</div>
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</div>
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<h2>Tri-State Checkbox Example</h2>
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<p>Nodes of the <a href="http://developer.yahoo.com/yui/treeview/">TreeView Control</a>
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can be highlighted in response to a user action or via code.
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That highlighting can affect a single node at a time or multiple nodes and it can propagate up or down the tree.
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In this example we show two trees built at random with different node highlighting settings.</p>
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<p>We begin by defining the containers that will hold the trees.
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The built-in stylesheet allows for two styles of highlighting,
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the first one, selected via the className <code>ygtv-checkbox</code>, will add a tri-state checkbox
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in between the toggle icon and the label, the second, selected via the className <code>ygtv-highlight</code>,
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will change the background of highlighted nodes.
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If neither of those classes are selected, the highlighting will still work,
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but the user won't notice since there will be no visual clues.
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We also add a button to show how highlighted (selected) nodes can be found.</p>
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<textarea name="code" class="HTML" cols="60" rows="1"><h3>Tree with highlight propagation and 'checkbox' skin</h3>
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<div id="treeDiv1" class="ygtv-checkbox"></div>
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<button id="logHilit">Log selected</button>
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<hr/>
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<h3>Tree with single node highlighting and simple skin</h3>
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<div id="treeDiv2" class="ygtv-highlight"></div></textarea>
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<p>We create the first TreeView and render it.
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Function <code>makeBranch</code> recursively builds a random branch of TextNodes.
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Highlighting is enabled by default, nodes can be highlighted via code,
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but to respond to user events we need to attach the supplied listener <code>onEventToggleHighlight</code>
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to the event we want to respond to.
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We also want the highlighting to propagate both up and down.</p>
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<textarea name="code" class="JScript" cols="60" rows="1">tree1 = new YAHOO.widget.TreeView("treeDiv1");
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makeBranch(tree1.getRoot());
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tree1.subscribe('clickEvent',tree1.onEventToggleHighlight);
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tree1.setNodesProperty('propagateHighlightUp',true);
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tree1.setNodesProperty('propagateHighlightDown',true);
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tree1.render();
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</textarea>
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<p>The checkbox is tri-state because when the highlighting propagates up,
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the parent node into which it propagates might not have all its child nodes highlighted,
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so the checkbox has a partially checked state.</p>
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<p>We can easily find out which nodes have been highlighted by searching the tree by property
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<code>highlighState</code> which will be 0 for not-highlighted, 1 for highlighted
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and 2 for a node that has some children highlighted.</p>
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<textarea name="code" class="JScript" cols="60" rows="1">YAHOO.util.Event.on('logHilit','click',function() {
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var hiLit = tree1.getNodesByProperty('highlightState',1);
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if (YAHOO.lang.isNull(hiLit)) {
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YAHOO.log("None selected");
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} else {
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var labels = [];
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for (var i = 0; i < hiLit.length; i++) {
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labels.push(hiLit[i].label);
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}
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YAHOO.log("Highlighted nodes:\n" + labels.join("\n"), "info", "example");
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}
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});</textarea>
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<p>For <code>tree2</code> we have set property <code>singleNodeHighlight</code> to true
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so that by selecting one node, the currently highlighted node, if any, will be un-highlighted.
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The change in appearance is due to the highlighting 'skin' selected.</p>
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<textarea name="code" class="JScript" cols="60" rows="1">tree2 = new YAHOO.widget.TreeView("treeDiv2");
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makeBranch(tree2.getRoot());
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tree2.singleNodeHighlight = true;
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tree2.subscribe('clickEvent',tree2.onEventToggleHighlight);
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tree2.render();</textarea>
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<h2>Configuration for This Example</h2>
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<p>You can load the necessary JavaScript and CSS for this example from Yahoo's servers. <a href="http://developer.yahoo.com/yui/articles/hosting/?treeview&MIN#configure">Click here to load the YUI Dependency Configurator with all of this example's dependencies preconfigured</a>.</p>
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</div>
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<div class="yui-u">
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<div id="loggerModule" class="yui-skin-sam">
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<h3 class="firstContent">YUI Logger Output:</h3>
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<div id="loggerDiv"></div>
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</div>
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<div id="examples">
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<h3>TreeView Control Examples:</h3>
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<div id="exampleToc">
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<ul>
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<li><a href='../treeview/default_tree.html'>Default TreeView</a></li><li><a href='../treeview/dynamic_tree.html'>Dynamically Loading Node Data</a></li><li><a href='../treeview/folder_style.html'>Folder-Style TreeView Design</a></li><li><a href='../treeview/menu_style.html'>Menu-Style TreeView Design</a></li><li><a href='../treeview/customicons.html'>Using TreeView with Custom Icons</a></li><li><a href='../treeview/tv_tooltip.html'>TreeView with Tooltips</a></li><li><a href='../treeview/tv_markup.html'>Three Ways to Define a TreeView: Markup (Progressive Enhancement), Existing TreeView Instance, and Object Literal </a></li><li><a href='../treeview/tv_edit.html'>Inline Editing of TreeView Node Labels</a></li><li class='selected'><a href='../treeview/tv_highlight.html'>Treeview Node Selection and Checkbox Example</a></li><li><a href='../menu/treeviewcontextmenu.html'>Adding A Context Menu To A TreeView (included with examples for Menu Family)</a></li> </ul>
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</div>
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</div>
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<div id="module">
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<h3>More TreeView Control Resources:</h3>
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<ul>
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<li><a href="http://developer.yahoo.com/yui/treeview/">User's Guide</a> (external)</li>
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<li><a href="../../docs/module_treeview.html">API Documentation</a></li>
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<li><a href="http://yuiblog.com/assets/pdf/cheatsheets/treeview.pdf">Cheat Sheet PDF</a> (external)</li></ul>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div class="yui-b" id="tocWrapper">
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<!-- TABLE OF CONTENTS -->
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<div id="toc">
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<ul>
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<li class="sect first">Yahoo! UI Library</li><li class="item"><a title="The Yahoo! User Interface Library (YUI)" href="http://developer.yahoo.com/yui/">Home (external)</a></li><li class="item"><a title="The Yahoo! User Interface Blog" href="http://yuiblog.com">YUIBlog (external)</a></li><li class="item"><a title="YUILibrary.com hosts the YUI community forums" href="http://yuilibrary.com/forum/">YUI Discussion Forum (external)</a></li><li class="item"><a title="The YUI Library source can be checked out from GitHub" href="http://github.com/yui/">YUI on GitHub</a></li><li class="item"><a title="Instantly searchable API documentation for the entire YUI library." href="../../docs/index.html">API Documentation</a></li><li class="item"><a title="Examples of every YUI utility and control in action" href="../../examples/">Functional Examples</a></li><li class="item"><a title="Videos and podcasts from the YUI Team and from the Yahoo! frontend engineering community." href="http://developer.yahoo.com/yui/theater/">YUI Theater (external)</a></li><li class="item"><a title="YUI is free and open, offered under a BSD license." href="http://developer.yahoo.com/yui/license.html">YUI License (external)</a></li><li class="sect">YUI Functional Examples</li><li class="item"><a title="The YUI Animation Utility - Functional Examples" href="../../examples/animation/index.html">Animation</a></li><li class="item"><a title="The YUI AutoComplete Control - Functional Examples" href="../../examples/autocomplete/index.html">AutoComplete</a></li><li class="item"><a title="The YUI Browser History Manager - Functional Examples" href="../../examples/history/index.html">Browser History Manager</a></li><li class="item"><a title="The YUI Button Control - Functional Examples" href="../../examples/button/index.html">Button</a></li><li class="item"><a title="The YUI Calendar Control - Functional Examples" href="../../examples/calendar/index.html">Calendar</a></li><li class="item"><a title="The YUI Carousel Control - Functional Examples" href="../../examples/carousel/index.html">Carousel</a></li><li class="item"><a title="The YUI Charts Control - Functional Examples" href="../../examples/charts/index.html">Charts</a></li><li class="item"><a title="The YUI Color Picker Control - Functional Examples" href="../../examples/colorpicker/index.html">Color Picker</a></li><li class="item"><a title="The YUI Cookie Utility - Functional Examples" href="../../examples/cookie/index.html">Cookie</a></li><li class="item"><a title="The YUI Connection Manager (AJAX) - Functional Examples" href="../../examples/connection/index.html">Connection Manager</a></li><li class="item"><a title="The YUI Container Family (Module, Overlay, Tooltip, Panel, Dialog, SimpleDialog) - Functional Examples" href="../../examples/container/index.html">Container</a></li><li class="item"><a title="The YUI DataTable Control - Functional Examples" href="../../examples/datatable/index.html">DataTable</a></li><li class="item"><a title="The YUI Dom Collection - Functional Examples" href="../../examples/dom/index.html">Dom</a></li><li class="item"><a title="The YUI Drag & Drop Utility - Functional Examples" href="../../examples/dragdrop/index.html">Drag & Drop</a></li><li class="item"><a title="The YUI Event Utility - Functional Examples" href="../../examples/event/index.html">Event</a></li><li class="item"><a title="The YUI Get Utility - Functional Examples" href="../../examples/get/index.html">Get</a></li><li class="item"><a title="The YUI ImageCropper Control - Functional Examples" href="../../examples/imagecropper/index.html">ImageCropper</a></li><li class="item"><a title="The YUI ImageLoader Utility - Functional Examples" href="../../examples/imageloader/index.html">ImageLoader</a></li><li class="item"><a title="The YUI JSON Utility - Functional Examples" href="../../examples/json/index.html">JSON</a></li><li class="item"><a title="The YUI Layout Manager - Functional Examples" href="../../examples/layout/index.html">Layout Manager</a></li><li class="item"><a title="The YUI Logger Control - Functional Examples" href="../../examples/logger/index.html">Logger</a></li><li class="item"><a title="The YUI Menu Control - Functional Examples" href="../../examples/menu/index.html">Menu</a></li><li class="item"><a title="The YUI Paginator - Functional Examples" href="../../examples/paginator/index.html">Paginator</a></li><li class="item"><a title="The YUI Profiler Utility - Functional Examples" href="../../examples/profiler/index.html">Profiler</a></li><li class="item"><a title="The YUI ProfileViewer Control - Functional Examples" href="../../examples/profilerviewer/index.html">ProfilerViewer</a></li><li class="item"><a title="The YUI ProgressBar Control - Functional Examples" href="../../examples/progressbar/index.html">ProgressBar</a></li><li class="item"><a title="The YUI Resize Utility - Functional Examples" href="../../examples/resize/index.html">Resize</a></li><li class="item"><a title="The YUI Rich Text Editor - Functional Examples" href="../../examples/editor/index.html">Rich Text Editor</a></li><li class="item"><a title="The YUI Selector Utility - Functional Examples" href="../../examples/selector/index.html">Selector</a></li><li class="item"><a title="The YUI Slider Control - Functional Examples" href="../../examples/slider/index.html">Slider</a></li><li class="item"><a title="The YUI Storage Utility - Functional Examples" href="../../examples/storage/index.html">Storage</a></li><li class="item"><a title="The YUI SWF Utility - Functional Examples" href="../../examples/swf/index.html">SWF</a></li><li class="item"><a title="The YUI SWFStore Utility - Functional Examples" href="../../examples/swfstore/index.html">SWFStore</a></li><li class="item"><a title="The YUI Stylesheet Utility - Functional Examples" href="../../examples/stylesheet/index.html">Stylesheet</a></li><li class="item"><a title="The YUI TabView Control - Functional Examples" href="../../examples/tabview/index.html">TabView</a></li><li class="selected "><a title="The YUI TreeView Control - Functional Examples" href="../../examples/treeview/index.html">TreeView</a></li><li class="item"><a title="The YUI Uploader Utility - Functional Examples" href="../../examples/uploader/index.html">Uploader (experimental)</a></li><li class="item"><a title="The YUI YAHOO Global Object - Functional Examples" href="../../examples/yahoo/index.html">YAHOO Global Object</a></li><li class="item"><a title="The YUI Loader Utility - Functional Examples" href="../../examples/yuiloader/index.html">YUI Loader</a></li><li class="item"><a title="The YUI Test Utility - Functional Examples" href="../../examples/yuitest/index.html">YUI Test</a></li><li class="item"><a title="YUI Reset CSS - Functional Examples" href="../../examples/reset/index.html">Reset CSS</a></li><li class="item"><a title="YUI Base CSS - Functional Examples" href="../../examples/base/index.html">Base CSS</a></li><li class="item"><a title="YUI Fonts CSS - Functional Examples" href="../../examples/fonts/index.html">Fonts CSS</a></li><li class="item"><a title="YUI Grids CSS - Functional Examples" href="../../examples/grids/index.html">Grids CSS</a></li><li class="sect">YUI Articles on the YUI Website</li><li class="item"><a title="Answers to Frequently Asked Questions about the YUI Library" href="http://developer.yahoo.com/yui/articles/faq/">YUI FAQ (external)</a></li><li class="item"><a title="Yahoo!'s philosophy of Graded Browser Support" href="http://developer.yahoo.com/yui/articles/gbs/">Graded Browser Support (external)</a></li><li class="item"><a title="Reporting Bugs and Making Feature Requests for YUI Components" href="http://developer.yahoo.com/yui/articles/reportingbugs/">Bug Reports/Feature Requests (external)</a></li><li class="item"><a title="Serve YUI source files from Yahoo! -- free, fast, and simple" href="http://developer.yahoo.com/yui/articles/hosting/">Serving YUI Files from Yahoo! (external)</a></li><li class="item"><a title="Best practices for working with web services while protecting user privacy" href="http://developer.yahoo.com/security/">Security Best Practices (external)</a></li></ul>
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</div>
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</div>
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</div><!--closes bd-->
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<div id="ft">
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<p class="first">Copyright © 2010 Yahoo! Inc. All rights reserved.</p>
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<p><a href="http://privacy.yahoo.com/privacy/us/devel/index.html">Privacy Policy</a> -
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<a href="http://docs.yahoo.com/info/terms/">Terms of Service</a> -
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<a href="http://docs.yahoo.com/info/copyright/copyright.html">Copyright Policy</a> -
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<a href="http://careers.yahoo.com/">Job Openings</a></p>
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</div>
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</div>
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<script src="../../assets/syntax.js"></script>
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<script src="../../assets/dpSyntaxHighlighter.js"></script>
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<script language="javascript">
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dp.SyntaxHighlighter.HighlightAll('code');
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</script>
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<script src='../../assets/YUIexamples.js'></script>
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</body>
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</html>
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