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< div class = "apiDetail" >
< div >
< h2 > < span > Function(event, treeId, treeNode)< / span > < span class = "path" > setting.callback.< / span > onCollapse< / h2 >
< h3 > 概述< span class = "h3_info" > [ 依赖 < span class = "highlight_green" > jquery.ztree.core< / span > 核心 js ]< / span > < / h3 >
< div class = "desc" >
< p > < / p >
< div class = "longdesc" >
< p > 用于捕获节点被折叠的事件回调函数< / p >
< p class = "highlight_red" > 如果设置了 setting.callback.beforeCollapse 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 > 对应 zTree 的 < b class = "highlight_red" > treeId< / b > ，便于用户操控< / p >
< h4 class = "topLine" > < b > treeNode< / b > < span > JSON< / span > < / h4 >
< p > 被折叠的节点 JSON 数据对象< / p >
< / div >
< h3 > setting & function 举例< / h3 >
< h4 > 1. 每次折叠节点后， 弹出该节点的 tId、name 的信息< / h4 >
< pre xmlns = "" > < code > function zTreeOnCollapse(event, treeId, treeNode) {
alert(treeNode.tId + ", " + treeNode.name);
};
var setting = {
callback: {
onCollapse: zTreeOnCollapse
}
};
......< / code > < / pre >
< / div >
< / div >