• javascript入门 之 ztree(七 结点的查询)


    <!DOCTYPE html>
    <HTML>
    <HEAD>
        <meta http-equiv="content-type" content="text/html; charset=UTF-8">
        <script type="text/javascript" src="js/jquery-3.3.1.js"></script>
        <link rel="stylesheet" href="bower_components/ztree/css/zTreeStyle/demo.css" type="text/css">
        <link rel="stylesheet" href="bower_components/ztree/css/zTreeStyle/zTreeStyle.css" type="text/css">
        <script type="text/javascript" src="bower_components/ztree/js/jquery-1.4.4.min.js"></script>
        <script type="text/javascript" src="bower_components/ztree/js/jquery.ztree.core-3.5.js"></script>
        <SCRIPT type="text/javascript">
    
            var setting = {
                data: {
                    key: {
                        title: "t"
                    },
                    simpleData: {
                        enable: true
                    }
                },
                view: {
                    fontCss: getFontCss
                }
            };
    
            var nodes =[
                { id:1, pId:0, name:"2", t:"id=1", open:true},
                { id:11, pId:1, name:"22", t:"id=11"},
                { id:12, pId:1, name:"24", t:"id=12"},
                { id:13, pId:1, name:"26", t:"id=13"},
                { id:14, pId:1, name:"28", t:"id=14"},
                { id:2, pId:0, name:"节点搜索演示 2", t:"id=2", open:true},
                { id:21, pId:2, name:"可以只搜索一个节点", t:"id=21"},
                { id:22, pId:2, name:"可以搜索节点集合", t:"id=22"},
                { id:23, pId:2, name:"搜我吧", t:"id=23"},
                { id:3, pId:0, name:"节点搜索演示 3", t:"id=3", open:true },
                { id:31, pId:3, name:"我的 id 是: 31", t:"id=31"},
                { id:32, pId:31, name:"我的 id 是: 32", t:"id=32"},
                { id:33, pId:32, name:"我的 id 是: 33", t:"id=33"}
            ];
    
            function focusKey(e) {
                if (key.hasClass("empty")) {
                    key.removeClass("empty");
                }
            }
            function blurKey(e) {
                if (key.get(0).value === "") {
                    key.addClass("empty");
                }
            }
            var lastValue = "", nodeList = [], fontCss = {};
            function clickRadio(e) {
                lastValue = "";
                searchNode(e);
            }
            function searchNode(e) {
    
                var zTree = $.fn.zTree.getZTreeObj("sys");
    
                if (!$("#getNodesByFilter").attr("checked")) {
                                                                                            //如果被选中getNodesByFilter方法
    
                    var value = $.trim(key.get(0).value);
                                                                                            //得到搜索框中的值,传给value
                    var keyType = "";
                                                                                            //初始化查询条件
    
                    if ($("#name").attr("checked")) {
                        keyType = "name";
                    } else if ($("#level").attr("checked")) {
                        keyType = "level";
                        value = parseInt(value);
                    } else if ($("#id").attr("checked")) {
                        keyType = "id";
                        value = parseInt(value);
                                                                                            //如果是根据level和id查的则强制转换为int类型
                    }
    
                    if (key.hasClass("empty")) {
                                                                                            //如果搜索框为空,则value为空
                        value = "";
                    }
    
                    if (lastValue === value) return;
                    lastValue = value;
                                                                                            //如果查询值不变,则直接返回下次结果
    
                    if (value === "") return;
                    updateNodes(false);
    
                    if ($("#getNodeByParam").attr("checked")) {
                                                                                            //如果被选中getNodesByParam方法
    
                        var node = zTree.getNodeByParam(keyType, value);                    //把指定的了结点(查到的第一个)给node
    
                        if (node === null) {
    
                            nodeList = [];
                        } else {
    
                            nodeList = [node];
                        }
    
                    } else if ($("#getNodesByParam").attr("checked")) {
    
                        nodeList = zTree.getNodesByParam(keyType, value);
                                                                                            //把指定的结点给nodeList
    
                    } else if ($("#getNodesByParamFuzzy").attr("checked")) {                //模糊查询
    
                        nodeList = zTree.getNodesByParamFuzzy(keyType, value);
                    }
    
                } else {
    
                    updateNodes(false);
                    nodeList = zTree.getNodesByFilter(filter);
                }
    
                updateNodes(true);
    
            }
            function updateNodes(highlight) {                                       //如果结点数据变了,则动态更新所有ztree结点数据
    
                var zTree = $.fn.zTree.getZTreeObj("sys");
    
                for( var i=0, l=nodeList.length; i<l; i++) {
    
                    nodeList[i].highlight = highlight;                              // 高亮显示查到的结果
                    zTree.updateNode(nodeList[i]);
                }
            }
    
            function getFontCss(treeId, treeNode) {
    
                return (!!treeNode.highlight) ? {color:"#A60000", "font-weight":"bold"} : {color:"#333", "font-weight":"normal"};
            }
    
            function filter(node) {                                                 //过滤器
                return !node.isParent && node.isFirstNode;
            }
    
            var key;
            $(document).ready(function(){
                $.fn.zTree.init($("#sys"), setting, nodes);
    
                key = $("#key");
                key .bind("focus", focusKey)
                    .bind("blur", blurKey)
                    .bind("propertychange", searchNode)
                    .bind("input", searchNode);
    
                $("#name").bind("change", clickRadio);
                $("#level").bind("change", clickRadio);
                $("#id").bind("change", clickRadio);
    
                $("#getNodeByParam").bind("change", clickRadio);
                $("#getNodesByParam").bind("change", clickRadio);
                $("#getNodesByParamFuzzy").bind("change", clickRadio);
                $("#getNodesByFilter").bind("change", clickRadio);
            });
    
        </SCRIPT>
    </HEAD>
    
    <BODY>
    <div class="content_wrap">
    
        <div class="zTreeDemoBackground left">
            <ul id="sys" class="ztree"></ul>
        </div>
    
        <div class="right">
            <ul class="list">
                <input type="text" id="key" value="" class="empty" /><br/>
                <!--搜索框-->
    
                <input type="radio" id="name" name="keyType" class="radio" checked /><span>name</span><br/>
                <!--搜索依据-->
    
                <input type="radio" id="level" name="keyType" class="radio" /><span>level</span><br/>
                <input type="radio" id="id" name="keyType" class="radio" /><span>id</span><br/>
    
                <input type="radio" id="getNodeByParam"       name="funType" class="radio"         /><span>getNodeByParam</span><br/>
                <input type="radio" id="getNodesByParam"      name="funType" class="radio"         /><span>getNodesByParam</span><br/>
                <input type="radio" id="getNodesByParamFuzzy" name="funType" class="radio" checked /><span>getNodesByParamFuzzy </span><br/>
                <input type="radio" id="getNodesByFilter"     name="funType" class="radio"         /><span>getNodesByFilter</span><br/>
    
    
            </ul>
        </div>
    </div>
    </BODY>
    </HTML>
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  • 原文地址:https://www.cnblogs.com/viplanyue/p/12700648.html
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