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<div class="apiDetail">
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<h2><span>Function(treeId, treeNode)</span><span class="path">setting.callback.</span>beforeDblClick</h2>
<h3>Overview<span class="h3_info">[ depends on <span class="highlight_green">jquery.ztree.core</span> js ]</span></h3>
<div class="desc">
<p></p>
<div class="longdesc">
<p>Used to capture the dblclick event before the 'onDblClick' callback, zTree based on return value to determine whether to trigger the 'onDblClick' callback.</p>
<p>Default: null</p>
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<h3>Function Parameter Descriptions</h3>
<div class="desc">
<h4><b>treeId</b><span>String</span></h4>
<p>zTree unique identifier: <b class="highlight_red">treeId</b>, easy for users to control.</p>
<h4 class="topLine"><b>treeNode</b><span>JSON</span></h4>
<p>JSON data object of the node which is double clicked</p>
<p class="highlight_red">If the DOM which dblclicked isn't a node, it will return null.</p>
<h4 class="topLine"><b>Return </b><span>Boolean</span></h4>
<p>return true or false</p>
<p class="highlight_red">If return false, ztree will not trigger the 'onDblClick' callback, no effect on other operations.</p>
<p class="highlight_red">This callback function does not affect the dblclick the parent node to auto expand, please refer to setting.view.dblClickExpand properties.</p>
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<h3>Examples of setting & function</h3>
<h4>1. disable to trigger the 'onDblClick' callback</h4>
<pre xmlns=""><code>function zTreeBeforeDblClick(treeId, treeNode) {
return false;
};
var setting = {
callback: {
beforeDblClick: zTreeBeforeDblClick
}
};
......</code></pre>
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