Home > Web Front-end > JS Tutorial > body text

ztree gets json through ajax and checks checkbook

不言
Release: 2018-07-09 15:45:49
Original
2797 people have browsed it

This article mainly introduces ztree to obtain json through ajax and check the checkbook. It has a certain reference value. Now I share it with everyone. Friends in need can refer to it.

In response to the request of superiors, the project If you want to use ztree for the tree list, just follow the command.

Configuration

 var zTree;
    var setting = {
        view: {
            dblClickExpand: false,  //双击节点时,是否自动展开父节点的标识
            showLine: true,         //设置ztree是否显示节点之间的连线
            selectedMulti: false,   //设置是否允许同时选中多个节点
        },
        check: {
            enable: true            //设置ztree的节点是否显示checkbox/radio
        },
        data: {
            simpleData: {
                enable:true,        //是否使用简单数据模式
                idKey: "id",        //节点数据中保存唯一标识的属性名称
                pIdKey: "p_id",     //节点数据中保存其父节点唯一标识的属性名称
                rootPId: ""         //用于修正根节点父节点的数据,即pIdKey指定的属性值
            }
        },
        callback: {
            onClick:function (e,treeId,treeNode,clickFlag) {     //用于捕捉勾选时触发
                zTree.checkNode(treeNode,!treeNode.checked,true);//勾选或取消勾选单个节点
            }
        }
    };
Copy after login

ajax

 var zNodes ;
    var select;
    var selectarry=[];   //要勾选的id
    var allnodes;
    var t = $("#tree");
    $.ajax({
        type: "POST",
        url: "...",//请求的后台地址
        data: "name=John&location=Bpston",//前台传给后台的参数
        dataType:"json",
        ansync:false,
        ContentType: "application/json; charset=utf-8",
        success: function(msg){         //msg:返回值
            // alert( msg.data );
            zNodes=msg.data.list;
            zNodes=eval(zNodes);
            //zNodes=JSON.stringify(zNodes);
            //console.log(zNodes);
            //alert(zNodes)
            t = $.fn.zTree.init(t, setting, zNodes);
            var zTree2 = $.fn.zTree.getZTreeObj("tree");
            selectarry=msg.data.nodes.split(",");
            allnodes=zTree2.getNodes();
            for(select=1;select<selectarry.length;select++)
            {
                allnodes[select]=msg.data.list[select];
            }
            console.log(allnodes);
            //console.log(selectarry);
            for(select=0;select<selectarry.length;select++)
            {
                zTree2.checkNode(zTree2.getNodesByParam("id",selectarry[select])[0],true);
            }

        }
    });
Copy after login

ps:

Attached are methods to expand, collapse, check, and cancel all nodes

//展开和折叠
    $("#ztreeExpandAll").click(function () {
        $.fn.zTree.getZTreeObj("tree").expandAll(true);
    });
    $("#ztreeUnExpandAll").click(function () {
        $.fn.zTree.getZTreeObj("tree").expandAll(false);
    });

    //勾选全部或取消全部
        var clicknumber=1;

        $("#checkall_deafult").click(function () {
            if(clicknumber%2>0) {
                // var treeObj = $.fn.zTree.getZTreeObj("tree");
                zTree.checkAllNodes(true);
            }
            else {
                // var treeObj = $.fn.zTree.getZTreeObj("tree");
                zTree.checkAllNodes(false);
            }
            clicknumber++;
        });
Copy after login

The above is the entire content of this article. I hope it will be helpful to everyone's study. For more related content, please pay attention to the PHP Chinese website!

Related recommendations:

Analysis of the asynchronous mechanism of jQuery source code

The above is the detailed content of ztree gets json through ajax and checks checkbook. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template