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< div class = "apiDetail" >
< div >
< h2 > < span > Function(treeId, treeNode)< / span > < span class = "path" > setting.callback.< / span > beforeCheck< / h2 >
< h3 > 概述< span class = "h3_info" > [ 依赖 < span class = "highlight_green" > jquery.ztree.excheck< / span > 扩展 js ]< / span > < / h3 >
< div class = "desc" >
< p > < / p >
< div class = "longdesc" >
< p > 用于捕获 勾选 或 取消勾选 之前的事件回调函数，并且根据返回值确定是否允许 勾选 或 取消勾选 < / p >
< p > 默认值： < / p >
< / div >
< / div >
< h3 > Function 参数说明< / h3 >
< div class = "desc" >
< h4 > < 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 > 进行 勾选 或 取消勾选 的节点 JSON 数据对象< / p >
< h4 class = "topLine" > < b > 返回值< / b > < span > Boolean< / span > < / h4 >
< p > 返回值是 true / false< / p >
< p class = "highlight_red" > 如果返回 false， ， < / p >
< / div >
< h3 > setting & function 举例< / h3 >
< h4 > 1. 禁止所有勾选操作，保持初始化的勾选状态< / h4 >
< pre xmlns = "" > < code > function zTreeBeforeCheck(treeId, treeNode) {
return false;
};
var setting = {
callback: {
beforeCheck: zTreeBeforeCheck
}
};
......< / code > < / pre >
< / div >
< / div >
