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	<h2><span>String / Number</span><span class="path">setting.data.simpleData.</span>rootPId</h2>
	<h3>Overview<span class="h3_info">[ depends on <span class="highlight_green">jquery.ztree.core</span> js ]</span></h3>
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		<p></p>
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			<p>Set the default value of root's 'pIdKey' specified attribute values​​. It is valid when <span class="highlight_red">[setting.data.simpleData.enable = true]</span></p>
			<p>Default: null</p>
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	<h3>Examples of setting</h3>
	<h4>1. use the simple data format</h4>
	<pre xmlns=""><code>var setting = {
	data: {
		simpleData: {
			enable: true,
			idKey: "id",
			pIdKey: "pId",
			rootPId: 0
		}
	}
};
var treeNodes = [
    {"id":1, "pId":0, "name":"test1"},
    {"id":11, "pId":1, "name":"test11"},
    {"id":12, "pId":1, "name":"test12"},
    {"id":111, "pId":11, "name":"test111"}
];
......</code></pre>
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