1 <div class="apiDetail">
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3 <h2><span>Function(treeId, parentNode, responseData)</span><span class="path">setting.async.</span>dataFilter</h2>
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4 <h3>Overview<span class="h3_info">[ depends on <span class="highlight_green">jquery.ztree.core</span> js ]</span></h3>
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7 <div class="longdesc">
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8 <p>Function used to pre-process for the return data of Ajax. It is valid when <span class="highlight_red">[setting.async.enable = true]</span></p>
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12 <h3>Function Parameter Descriptions</h3>
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14 <h4><b>treeId</b><span>String</span></h4>
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15 <p>zTree unique identifier: <b class="highlight_red">treeId</b>, easy for users to control.</p>
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16 <h4 class="topLine"><b>parentNode</b><span>JSON</span></h4>
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17 <p>Parent node's JSON data object</p>
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18 <p class="highlight_red">When asynchronously loading the root, the parentNode = null</p>
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19 <h4 class="topLine"><b>responseData</b><span>Array(JSON) / JSON / String</span></h4>
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20 <p>Ajax got Array (JSON) / JSON / String data objects</p>
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21 <p class="highlight_red">From v3.4, support the string with XML format.</p>
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22 <h4 class="topLine"><b>Return </b><span>Array(JSON) / JSON</span></h4>
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23 <p>The return value should be the JSON data structure which is supported by the zTree.</p>
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24 <p class="highlight_red">v3.x supports to load single node JSON data object.</p>
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26 <h3>Examples of setting & function</h3>
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27 <h4>1. Modify the node name attribute which is ajax got.</h4>
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28 <pre xmlns=""><code>function ajaxDataFilter(treeId, parentNode, responseData) {
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30 for(var i =0; i < responseData.length; i++) {
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31 responseData[i].name += "_filter";
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34 return responseData;
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39 url: "http://host/getNode.php",
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40 dataFilter: ajaxDataFilter
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