jstree select_limit无效。我想设置选择限制只选择3个节点 [英] jstree select_limit not working. I want to set selection limit to select only 3 nodes

问题描述

我的jstree函数在这里。

我设置了'select_limit'：3 ，但是没有用。当我运行时，我能够选择3个以上的节点，但我需要选择不超过3个节点。

My jstree function is here.
I have set 'select_limit' : 3, but is not working. when I run, I am able to select more than 3 nodes, but I need to select no more than 3 nodes.

    j1("#utree_activity").jstree({
        "plugins": ["themes", "html_data", "ui", "crrm", "checkbox"],
        "html_data": {
            "ajax": {
                "url": urlGlobal + "jstrees/activitytree/",
                "asynchronous": "false",
                "data": function (n) {

                    return {
                        id: n.attr ? n.attr("id") : 0,
                        default_activities: default_activities
                    };
                },
                "success": function (gb) {

                },

            }
        },
        "ui": {
            "select_limit": 3,
        },

        "cookies": {
            cookie_options: {
                path: "/"
            }
        },

        "checkbox": {
            two_state: true,
            real_checkboxes: false
        }
    });

推荐答案

select_limit doens't handle复选框你必须滚动你自己的 before.jstree 方法。

select_limit doens't handle checkbox you must roll your own before.jstree method.

j1.bind("before.jstree", function (e, data) {
    if (data.func === "check_node") {
        if (j1.jstree('get_checked').length >= 1) {
            e.preventDefault();
            return false;                
        }
    }
});

请注意，此代码仅作为示例，并且不处理子节点

Note that this code if for example only, and doesn't handle child nodes

工作小提琴： http://jsfiddle.net/cfb9J/1/

这篇关于jstree select_limit无效。我想设置选择限制只选择3个节点的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！