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| | | <div class="apiDetail"> |
| | | <div> |
| | | <h2><span>Function(treeId, treeNode)</span><span class="path">setting.callback.</span>beforeCollapse</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>Specify callback function to be called before collapse node, The return value controls the collapse node.</p> |
| | | <p>Default: null</p> |
| | | </div> |
| | | </div> |
| | | <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>.</p> |
| | | <h4 class="topLine"><b>treeNode</b><span>JSON</span></h4> |
| | | <p>JSON data object of the node to be collapsed</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 collapse node, and will not trigger the 'onCollapse' callback.</p> |
| | | </div> |
| | | <h3>Examples of setting & function</h3> |
| | | <h4>1. disabled to collapse node which is expanded</h4> |
| | | <pre xmlns=""><code>function myBeforeCollapse(treeId, treeNode) { |
| | | return false; |
| | | }; |
| | | var setting = { |
| | | callback: { |
| | | beforeCollapse: myBeforeCollapse |
| | | } |
| | | }; |
| | | ......</code></pre> |
| | | </div> |
| | | </div> |