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| | | <div class="apiDetail"> |
| | | <div> |
| | | <h2><span>Boolean / Function(treeId, treeNodes, targetNode)</span><span class="path">setting.edit.drag.</span>prev</h2> |
| | | <h3>Overview<span class="h3_info">[ depends on <span class="highlight_green">jquery.ztree.exedit</span> js ]</span></h3> |
| | | <div class="desc"> |
| | | <p></p> |
| | | <div class="longdesc"> |
| | | <p>When drag one node to the target node, set whether to allow the node to be the target node's previous sibling. It is valid when <span class="highlight_red">[setting.edit.enable = true]</span></p> |
| | | <p class="highlight_red">If the target node is root, so zTree will only trigger 'inner' and not trigger 'prev / next'.</p> |
| | | <p class="highlight_red">This function mainly for the appropriate limit drag and drop (auxiliary arrow), it requires a combination of 'next, inner' together, to achieve full functionality.</p> |
| | | <p>Default: true</p> |
| | | </div> |
| | | </div> |
| | | <h3>Boolean Format</h3> |
| | | <div class="desc"> |
| | | <p> true means: allow the node to be the target node's previous sibling.</p> |
| | | <p> false means: don't allow the node to be the target node's previous sibling.</p> |
| | | </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>treeNodes</b><span>Array(JSON)</span></h4> |
| | | <p>A collection of the nodes which has been dragged</p> |
| | | <h4 class="topLine"><b>targetNode</b><span>JSON</span></h4> |
| | | <p>JSON data object of the target node which treeNodes are draged over.</p> |
| | | <h4 class="topLine"><b>Return </b><span>Boolean</span></h4> |
| | | <p>return true or false</p> |
| | | </div> |
| | | <h3>Examples of setting & function</h3> |
| | | <h4>1. disable to drag the node to the target node's previous sibling.</h4> |
| | | <pre xmlns=""><code>var setting = { |
| | | edit: { |
| | | enable: true, |
| | | drag: { |
| | | prev: false, |
| | | next: true, |
| | | inner: true |
| | | } |
| | | } |
| | | }; |
| | | ......</code></pre> |
| | | <h4>2. disable to drag the node to be all of the parent nodes's previous sibling.</h4> |
| | | <pre xmlns=""><code>function canPrev(treeId, nodes, targetNode) { |
| | | return !targetNode.isParent; |
| | | } |
| | | var setting = { |
| | | edit: { |
| | | enable: true, |
| | | drag: { |
| | | prev: canPrev, |
| | | next: true, |
| | | inner: true |
| | | } |
| | | } |
| | | }; |
| | | ......</code></pre> |
| | | </div> |
| | | </div> |