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< div class = "apiDetail" >
< div >
< h2 > < span > Function(event, treeId, treeNodes)< / span > < span class = "path" > setting.callback.< / span > onDrag< / h2 >
< h3 > 概述< span class = "h3_info" > [ 依赖 < span class = "highlight_green" > jquery.ztree.exedit< / span > 扩展 js ]< / span > < / h3 >
< div class = "desc" >
< p > < / p >
< div class = "longdesc" >
< p > 用于捕获节点被拖拽的事件回调函数< / p >
< p class = "highlight_red" > 如果设置了 setting.callback.beforeDrag 方法，且返回 false， < / p >
< p > 默认值： < / p >
< / div >
< / div >
< h3 > Function 参数说明< / h3 >
< div class = "desc" >
< h4 > < b > event< / b > < span > js event 对象< / span > < / h4 >
< p > 标准的 js event 对象< / p >
< h4 class = "topLine" > < b > treeId< / b > < span > String< / span > < / h4 >
< p > 被拖拽的节点 treeNodes 所在 zTree 的 < b class = "highlight_red" > treeId< / b > ，便于用户操控< / p >
< h4 class = "topLine" > < b > treeNodes< / b > < span > Array(JSON)< / span > < / h4 >
< p > 要被拖拽的节点 JSON 数据集合< / p >
< / div >
< h3 > setting & function 举例< / h3 >
< h4 > 1. 每次开始进行拖拽节点后， 弹出被拖拽节点的个数信息< / h4 >
< pre xmlns = "" > < code > function zTreeOnDrag(event, treeId, treeNodes) {
alert(treeNodes.length);
};
var setting = {
callback: {
onDrag: zTreeOnDrag
}
};
......< / code > < / pre >
< / div >
< / div >