javascript - 向 jstree 添加 after/before 功能

Question

有没有办法可以将 、 add_before 和 add_after 添加到 jstree

例如:

.bind("add_after.jstree", function (node,data){
      #perform some function 
})

Answer 1

来自documentation :

jsTree uses events to notify of any changes happening in the tree. All events fire on the tree container in the jstree namespace and are named after the function that triggered them.

和

There is also one special event - before.jstree. This events enables you to prevent an operation from executing.

因此，您应该能够在插入新节点之前和之后监听事件，如下所示:

$(function () {
    $("#treeId").bind("before.jstree", function (e, data) {
        if(data.func === "create_node") {
            // This block will execute before inserting a new node
        }
    });

    $("#treeId").bind("create_node.jstree", function (e, data) {
            // This block will execute after inserting a new node
    });
});